⚓

Event data links for BCEN

• gatya.tsv (cached for 3600 seconds)
• item.tsv (cached for 3600 seconds)
• sale.tsv (cached for 3600 seconds)

⚓

What's changed?

⚓

2026-09-22

• The weird selected ~ : event when using customized events is now removed.

⚓

2026-09-21

• Add DL Special rate to customized events.
• Menu items have text now. This should improve new user experience.

⚓

2026-09-17

• Text background on found cats is fixed.

⚓

2026-08-30

• A new option to add background color for text to improve readability, is added.
• Improve readability on ultra talents for color blindness, changing from greenyellow to salmon.
• Under image only display, it'll show the text instead when there's no image to show. This happens when future ubers are added, or reading the help page. Those are fake cats therefore there's no image to show for them. Use the original text for those cases.

⚓

2026-08-25

• The previous mkweb theme is now renamed to Alternate. It was supposed to be colorblind friendly, but it's not done right so it's now renamed. A new theme is added in place of the mkweb which is a new attempt to be colorblind friendly, using the same mkweb palette.
• The order of the top options are updated accordingly.

⚓

2026-08-22

• Allow search engine to index the site, but specifically block bots from Facebook and Apple, because they're abusing.

⚓

2026-08-19

• Stop giving 404 when the requests have referer header from YouTube, Twitter, and Facebook.

⚓

2026-08-11

• Event end dates are now normalized based on the upcoming replacement events. This means platinum/legend events are no longer showing an end year on 2030 if there is an upcoming new platinum/legend event to replace it.
• Given the above change, hiding past platinum/legend events workaround is also removed, therefore you would be able to see past platinum/legend events from now on. Previously, past platinum/legend events were hidden.
• The same change applies to other events as well, meaning that you would no longer see a bunch of the same events showing up in upcoming, because earlier ones will be considered expired, even when technically they're not expired yet. This better reflects how the game works. You can't roll on those events anyway. You can still find them on the past events if they're still up in your timezone.

⚓

2026-08-10

• We no longer show all events in a single page. This should improve page responsiveness by stop showing 2200 events but only the most recent 100. To turn to next page, scroll to the bottom of the event dropdown menu, and select "Next page...". Similarly, select "Previous page..." on the top to turn to previous page when you're not on page 1.
• Navigation on older platinum and legend events are fixed.

⚓

2026-08-06

• A new highlighting option is added, Consistent. This one always highlights the score color on the left, and varying on the right, following from found, owned, exclusive, and cat rarity, except for ubers under platinum or legend events, to avoid showing almost everything in red.

⚓

2026-08-03

• Owned color is now more obvious (azure -> lightcyan)
• Added a new rarity filter under advanced filters
• A new highlighting option is added. The default Basic one is unchanged. A new Advanced one is added, which shows a rarity indicator on the left of the cell. If the main color is not a score color (for example, when you're searching for it, or when you owned it, or when it's an exclusive cat), then rather than showing the rarity, it would show the score color instead. This way, the score color will always show. This has the following advantages comparing to the basic highlighting:
  • Never miss the score, so never miss a potential uber/legend.
  • Easier to spot a legend hiding inside the legend banner, or when the score color doesn't perfectly match the rates of the banner. For example, there are special banners like Busterfest (7% uber), Dynasty Fest (7% uber), Superfest (10% uber), and 100M DL Special (0.7% legend), or other potential future banners which don't share regular rates. Some people mistook the mismatch as bugs, but there are too many combinations and edge cases when there are banners with uncommon rates. They might expect the score color as the rarity color, and now this adds actual rarity color so it would be easier to spot mismatch with this new indicator.

⚓

2026-08-02

• Fixed owned coloring for legend-fest and legend positions
• Legend color no longer takes the priority. It's not working consistently anyway, so it's confusing and not exactly helpful. A new rarity indicator feature is coming soon which would help more to discover legend positions.

⚓

2026-07-31

• Instead of submitting the page every time we tick a cat in the cats listing page, now we use a "Own all ticked" submit button to submit all ticked cats at once. Note that changing any other settings would also submit the ticked cats as well.
• Introduce light purple color coding for positions which are legend cats in Royalfest and double legend chances events.

⚓

2026-07-30

• For customized gacha, the predefined Superfest rate is updated with legend being included. A new Superfest rate without legend being included is also added to maintain backward compatibility.
  • This also means the predicted rate for Superfest should be fixed now. It was predicted as a regular banner before, now properly as Superfest
• Another fix for 3rd link in the seek result page for guaranteed rolls. It was not showing up if the 10 inputs contain any duped rare cats. Now it would always properly detect when there are 10 inputs, and show the 3rd link. Thanks Dersing for reporting this.
• Talents are applied at max level by default from now. This gives a better overview for the max potentials. The affected numbers or abilities are highlighted with the same color from the respective talents.
  • If this is not desired, tick the "Exclude talents" option at the top. When this option is used, it'll also list the talents separately as before.
• The ultra talent's color is changed from lightpink to greenyellow, because otherwise the color would be too similar to wave/surge/explosion attacks.
• Similarly to Critical Strike talent description fix, the same fix is applied to Savage Blow. On Ultra Delinquent Cat it was:

  Improve rate by 1% ~ 10% by 10 levels

  Now it is:

  1% ~ 10% to deal 300% damage by 10 levels

  This talent is unlocking Savage Blow rather than improving it.

⚓

2026-07-21

• Stat values varying with treasures are now shown as or rather than ~ now. This should avoid reading that as a range, which is not the case.

⚓

2026-07-17

• Update talent description for Critical Strike on Cameraman, Manic Princess Punt, and Li'l Mohawk Cat. It was:

  Improve rate by X%

  Now it is:

  X% to deal 200% damage and ignore metal effect

  Their Critical Strike talent is unlocking critcial strikes, not improving the rate, thus the description change.
• Talent background color is changed from lightyellow to khaki. Lightyellow is too light and not very readable when it's used as the background on text. So far this is not used on the text yet, but stats showing with talents applied is coming soon, which will use background color to indicate which attributes or abilities are improved with talents. This should be made more obvious.

⚓

2026-07-13

• Stats page also link to Battle Cats Information site (貓咪大戰爭中文資訊網)

⚓

2026-07-07

• The max count (rolls) is slightly raised from 250 to 300, given that the server seems to be relatively stable now. There's no plan to raise this back to 999, but somewhere between 300 and 500 is considered.
• Reviewing all the blocked requests from bots, one particular agent is also blocked but maybe shouldn't: Google-Read-Aloud. If you're a user who relies on that, please file an issue and let's talk if that should be exempted and how. File an issue at: issues

⚓

2026-07-06, part 2

• The server has been very overloaded for some time. In order to fight against this, beside reducing max count from 500 to 250, two specific Cloudflare rules are added to reduce requests coming from bots.

  From now on, bots are not allowed to request / with seed=. For now that's the most expensive requests which should be preserved for human only. There are also infinite links which the bots might get lost and stuck there.

  Bots are also rate limited to 10 requests per 10 seconds at most. That's already faster than most human can ever read.

  For the record, Facebook (Meta) meta-externalagent is the top offender, making 10 times more requests than the second offender, Apple Applebot, and 200 times more requests than the third offender, Anthropic ClaudeBot. Both Facebook and Apple also completely ignore all 3 measures to politely ask them stop:

  • File robots.txt, ignored
  • HTML <meta name="robots" content="none">, ignored
  • HTTP header X-Robots-Tag: none, ignored
  While it's probably not surprising that Facebook is not a good citizen, Apple published this document: About Applebot and it specifically documented that Applebot should respect the above 3 measures but that's not true, and they're still bombarding the site. Of course, it's worth to repeat that Facebook (Meta) still did 10 times more than Apple did. The rest were making much less requests so we can ignore for now.

  This policy will be revisited based on the future data. It's not intended to completely block bots from accessing, but it has to be reasonable.

⚓

2026-07-06

• The @VampireFlower seeker now can detect the first duped rare by itself, fixing a forever standing 8.6+ seeker "bug", so long that it's kind of considered a "feature" lately.

  Given the fix, even if the seeker couldn't find a seed, you do not need to remove the first rare cat and try again. It will not help and will not find anything different.

  Thanks @VampireFlower for the contribution.

• The 3rd link in the seek result page for guaranteed rolls was broken and never shown after the VampireFlower seeker was introduced due to internal interface change. This is fixed now. If you have 10 inputs, it'll show this 3rd link again for those who used guaranteed rolls for inputs.
• To further reduce server load, the max count has been reduced again from 999 to 500 and now to 250. It will be raised back when server load is no longer a concern. You can also run the server locally with Docker where the default max count is still 999: docker run --rm -p 8080:8080 registry.gitlab.com/godfat/battle-cats-rolls Check README.md for more details.

⚓

2026-07-05

• The units for speed and range are now always displayed for clarity.
• The range unit is now called range (r).
• The default speed unit is now called range/second (r/s). Numerically, this means speed values are multiplied by 15. This makes it easier to gauge how far a cat will run in one second. If you prefer the old unit, now called speed/frame (p/f), you can switch back to it.

⚓

2026-04-26

• Layout for displaying both cat names and images is slightly tweaked. Most importantly, avoid having to scroll when width is not enough. This mostly only affects mobile view which may not have enough width.

⚓

2026-04-23

• We have a new option to change the display mode for tracks. Default is the same as before, showing cat names in text. It can be changed to show image instead, or both text and image. This can be useful for people who aren't very familiar with the names but the images. Thanks @asHOH for the contribution.
• Name option is renamed to Form option, to better reflect that it can change the display cat image as well.
• Version selector is removed because it's not useful for years. Relevant UIs are tweaked accordingly. This gives us some spaces back.

⚓

2026-03-17

• Updated mobile view to make it more compact.

⚓

2026-03-09

• Owned cats are enhanced by preserving the color coding in tracks. This should make it less likely to miss important cats in other banners. Thanks @asHOH for the contribution.

⚓

2026-02-19

• If position is out of range, assuming 1A. This fixed a crash for people setting a position >500 from when the max count can be 999.

⚓

2026-02-14

• Reduced the max count from 999 to 500 to reduce server load.

⚓

2026-01-27

• Fixed slot color coding for fest super rare and fest uber. For a period when regular banners had legends while uberfest and epicfest didn't have legends, this color coding was too complex to be fully accurate. However, since both uberfest and epicfest have 0.3% legends as regular banners, this can be fully aligned and consistent again.

  Here's an example: Seed 2118321982 2A has a score of 9070, which is now an uber at uberfest and epicfest, but it was coded as just a regular super rare before. After the fix, this is correctly coded as a fest uber.

  Similarly, a lot of players noticed that some ubers were coded as an uber fest when it's already an uber, would be properly coded as a regular uber now. This applies to scores between 9471 to 9499. Note that this also means those slots while will be shown as a uber now, can be just a super rare in banners which don't have legends. Here's an example: Seed 1928358907 2A has a score of 9498 for a Brainwashed Lizard Cat. Before the fix, this was shown as a fest uber, but in fact it's an uber slot. It is an uber in banners with legends. After the fix, this is shown as an uber, but Brainwashed Lizard Cat is not an uber.

  This is not a bug because the color coding is always meant for the slot, not the rarity in a particular banner. It is intended for knowing the potential rarity in "other" banners, so we're less likely to miss an important slot when it's less important in the current banner we're looking at.

  Right now there are too many types of banners with all different rates and different rarities (having legends or not), thus we sacrifice accuracy for simplicity here, that is the most common banners and uberfest and epicfest. Note that this also means it's not fully accurate for superfest!

  Fixed by 60c01f6f

⚓

2026-01-26

• Fixed site crashing when last cat is a duplicated cat of the next cat by checking if there's actually a rerolled cat. Only duplicated rare cat would have a rerolled cat, so this was crashing for super rare and uber, and also legend rare even when it's more rare. This was broken by 4e00e45f and fixed by 029c74ca

⚓

2026-01-22

• Now we can mark the next position with the rerolled cat by clicking on the same position label. This will rotate between them.
• Add a backtrack link to go back to previous roll.

⚓

2026-01-21

• We no longer highlight the path from 1B. This is replaced by the following next position marker feature.
• We can now click on the position label to mark the next position.
  • When a next position is marked, highlighting will start from that particular position rather than 1A. This removes the last cat as well, because last cat is supposed to be 0A, which is not applicable when the next position is beyond 1A.
  • When we advance tracks by clicking on a particular cat, we set the last cat as usual, and we also reset the next position back to 1A.
  • This means the next position marker is mutual exclusive to the last cat feature.
  • NOTE: For now we cannot mark the next position with a rerolled cat. This means highlighting with a specific next position with a rerolled cat will not highlight properly. This will be fixed next.

⚓

2026-01-18

• We serve the tsv files again, cached for 1 hour.

⚓

2025-11-09

• Redundant title in the meta description is removed.

⚓

2025-11-06

• Add form name selection when showing stats. This decides which meta-description and og-image it should use for the page.
• HTML title will now also include page info.

⚓

2025-10-25

• Various fixes for showing true form stats. If you're interested about all the details, read: Consolidate the form data in stats

⚓

2025-10-24

• Now display the cat avatars in stats.

⚓

2025-10-18

• Always highlight 1A as next if nothing else is picked. This should give a better sense that we assume 1A is the next.
• Add tooltips to various control labels.

⚓

2025-07-18

• Avoid building cats without a description.

⚓

2025-07-18

• The old seeker is now disabled on the UI. This is disabled because it's very slow comparing to the new one, and sometimes people are still using it, and when that happens, queue is piling up fast. Disabling the old seeker should much help reduce the queue, and help the overall performance under heavy traffic.

⚓

2025-06-18

• Fixed a minor bug that all triggered attacks should be area attacks. They should not inherit the type from the main attack, because so far wave, surge, and explosion are all area attack, while the main attack can be single ranged.

⚓

2025-06-06

• Compact the descriptions for advanced filters.
• Add <=3500 and <=4500 cost filters.
• Show some more meaningful meta description, like page name and cat's name and description.

⚓

2025-06-02

• Generalized and expanded advanced filters.

⚓

2025-05-31

• Moved DPS relevant options under advanced filters.
• Fixed not remembering advanced filters in some pages.
• Reordered filters to High, High effective, Very high, Very high effective, and Extremely high effective. This seems easier to follow, even though it's mixing types.
• Added a background color to advanced filters so it's clear which are the advanced filters.
• Added a knockbacks filter in the advanced filters.

⚓

2025-05-30

• Move DPS, Single blow damage, Health, and other Aspects filters under advanced filters so they don't show up by default. This should make it easier to navigate with basic filters in the default view. When we're hiding the advanced filters, all advanced filters will be dropped as well.
• Level input is no longer limited at the max level, and can be set to any positive integer >= 1. How stats are calculated does not change, that is it's still limited to the max level. For example, the default is level 30, and the default display for Metal Cat is still showing at level 20, its max, even when the input shows level 30. Now we also show the max level so it's clear if the input is greater than the max, it's calculated at max.
• The above change should improve the UX when switching view between cats having a lower max level. For example, previously when you visit the Metal Cat, the level can be reduced to 20, and if you use options there, the level input can be then remembered to 20 even when it was set higher before. With this change, level input will never be forced to change.
• Add the level input when advanced filters are enabled. It'll affect advanced filters for things like DPS, Damage, and Health, so it can be useful there.

⚓

2025-05-26

• Added effective health filters. Thresholds are: 100,000, 200,000, 400,000.
• Display blind spot for long-range and omni-strike cats. - indicates no blind spot, while 0 means it cannot hit behind itself. A standard area attack can reach -320 behind, so blind spots can be negative as well. It's only considered to have no blind spot if it can hit -320 behind, like a standard area attack.

⚓

2025-05-25

• Expanded filtering options with the same from stats: Excluding wave/surge/explosion and critical strike, savage blow from DPS.
• Split damage related aspects to their own section.
• Split health related aspects to their own section.
• Split DPS related aspects to their own section.
• Use radio buttons for DPS, damage, and health.

⚓

2025-05-24

• Added filtering with high effective DPS. The effective DPS thresholds are: 7,500, 15,000, 25,000. Fruit treasures are considered so they're different for Aku, Relic, White, and Metal.
• Added filtering with high effective single blow. The effective single blow thresholds are: 50,000, 100,000, 200,000. Fruit treasures are considered so they're different for Aku, Relic, White, and Metal.
• Updated filtering with single blow calculation that it no longer considers the damage sum, but truly for a single blow.

⚓

2025-05-18

• Display the number of cats within the rarity for the filtered cats.
• Added filtering with melee, midrange, backline, and rearline.
• Added filtering with far-reaching, and very far-reaching.

⚓

2025-05-05

• Fixed damage sum to exclude cascade effects.
• Added aspect filters.

⚓

2025-05-04

• Fixed talents can be applied to first and second forms.
• It should no longer filter across different forms. Now it should filter based on the same form, and will not match one condition in one form and another in a different form.

⚓

2025-05-03

• Added a section for filtering range and area.

⚓

2025-05-02

• Extracted counter and combat sections for filtering.
• Put any before all.
• Moved owning all cats to below the filtering table. This gives more vertical spaces for the filtering table so we need to scroll less to get to where we're ticking the filters.
• We also link to the same section when we're owning or dropping the cats. This makes it easier to observe results without more scrolling.
• Added an option to exclude talents.
• Fixed filtering against specialization embedded in talents. For example, Kubiluga against metal and Hades against relic.

⚓

2025-05-01

• Fixed a bug where filtering with metal specialization can return Metal Cat and Glass Cat. This is fixed by renaming the metal ability to metallic. This can fix it because it's no longer ambiguous.

⚓

2025-04-30

• Fixed a bug where filtering with wave or surge can include the mini ones.

⚓

2025-04-29

• Align filters text to left.
• Extracted resistant from buff.
• Now clicking on the cat's name on the cats page will link to the stat page, rather than owning the cat. We also drop the paw because it's no longer needed. People can still click on the checkbox to own the specific cat.
• In the detailed gacha slots information, we also show the cat information in the title.
• It is now possible to filter any buffs, in additional to any offensive buff and any defensive buff. Use `Or` to pick any offensive buffs or defensive buffs, and use `And` to pick any offensive buffs and defensive buffs. We still only support `Any` because `All` still doesn't make sense in this context.

⚓

2025-04-28

• Now we can filter buff and control separately. For buff, it can never have more than one, so it does not have the option for all.
• Immunity can also be filtered separately now. Blocking wave is put into immunity. Does that make sense?
• Filtering with specialization (renamed from against) now will also look into talents.
• Removed some borders for filters table, trying to reduce visual noise.

⚓

2025-04-27

• Renamed Metal ability to Metallic. This is done to avoid ambiguity with metal trait.
• Filtering cats now support filtering abilities, too.

⚓

2025-04-26

• Fixed a bug where using owning or dropping all cats can have some weirdness if some of the cats are already owned. The bug was introduced for preparing to add filtering option.
• Show the regular options before the owning cats options. This looks more consistent comparing to other pages.
• Added a cats specialization filter.

⚓

2025-04-21

• Added a new seeker backend from VampireFlower, which is much faster than the current one. With some small samplings (n < 5), it's 25x to 200x times faster! This should much reduce the server load and the size of queue. Also note that some seeds cannot be found by the current one can also be found by this new one.

⚓

2025-04-20

• Added a new seeker option on the seeker page in preparation for introducing a new seeker.

⚓

2025-04-15

• Use the canonical URI for the seeker page.

⚓

2025-03-18

• The 100M banner is no longer considered a legend banner, therefore the regular legend banner should shop up again when the 100M banner is up.

⚓

2025-02-21

• Remember the last rolled cat even when switching to a banner which doesn't have the cat. Essentially the blank option in the drop down menu will preserve whatever it is before, without showing what it is.

  This also means that you can no longer drop the last cat by using the blank option, and you have to edit the URL to drop it if you need. This can be annoying when once you're able to retreat the seed, which means the last rolled cat no longer makes sense. When we have this feature, retreating the seed should likely drop the last cat.

• Rarity label updated to show actual text then the number when showing all cats.

⚓

2025-02-09

• Explosion and immune to explosion implemented.
• Event data links are removed because they no longer work anyway. There are no plans to fix them at the moment, because it's more involved and the site is not designed to serve these.

⚓

2025-01-27

• Update Wiki links.

⚓

2024-11-21

• Show metal killer.
• Fixed showing Dynasaurus Cat. It's missing spirit information. For now we just show it's unknown.
• Actually, that's also fixed in the same day. Now it's showing the spirit properly. It's missing because it's lacking a name.
• Avoid showing future uber cat links in details view.

⚓

2024-02-17

• If Max DPS area is none, then damage sum shouldn't exist. Now it shows - instead. This is the case for Izanagi.

⚓

2024-02-16

• First iteration showing talents is up.
• Corrected how attack cycle and DPS are calculated. This should now fully match with battle-cats.fandom.com and battlecats-db.com.
• If Max DPS area is none, then DPS sum shouldn't exist. Now it shows - instead. This is the case for Izanagi.
• Renamed Attack duration to Trigger duration.
• Reordered some abilities.
• Added ability to block waves. (For Cat Machine, etc)
• Added cat link to wiki

⚓

2024-02-14

• Added Counter-surge, Sage slayer, and Conjure.
• Added immunity for bosswave.
• Show description when mouse over names on stat pages.
• Added Ultra form to the name list.

⚓

2024-02-10

• Fixed stat pages for conjured units.
• Renamed Rush duration to Push duration.
• Added more translations for BCJP and started translating BCTW.

⚓

2023-11-20

• Introduced UI language which you can use the same language as the Battle Cats app for the UI.
  • The default language will match the Battle Cats language.
  • The name inside () for the language is the translator/proofreader of the language. (-) means there's no one yet.
  • The translations are not fully done yet. A lot of them are still missing and it's working in progress.
• Fixed using canonical URI for the help and logs page.

⚓

2023-11-18

• Fixed calculation of attack animation for the 4th form.
• Fixed MyGamatoto's link when the id is 3 digits.

⚓

2023-05-27

• Fixed seeker 8.6+ for when the score is at the edge.

⚓

2023-05-11

• Tweak and update mkweb color theme based on v11.4, from v8.13.
  • There's no good choice for light yellow, so a greener color is picked. The alternative can be an orange one, but that's darker than the yellow used for super cats, and it feels more like more rare than super cats but it's not.
• Add background colors to attacks and wave/surge attacks. An option to select the theme is also added.

⚓

2023-05-09

• Show surge attacks and account it for DPS sum and damage sum.

⚓

2023-05-08

• Fixed various bugs for showing stats for cats with wave, such as Chronos the Bride, Hermit Cat.
• The option to discount wave from DPS also discount from damage sum. When used, it no longer reduces wave DPS to 0, but only subtracted from sum.
• Show a new field "Enemy base range", which is used to indicate how far the cats will stop before an enemy base. It can be quite different for long range and omni strike cats.

⚓

2023-05-07

• Show wave attacks and account it for DPS.
• Wave attacks can be hidden and/or discount from DPS.

⚓

2023-05-04

• Level query is now preserved across the site.
• Stats notes are moved to the bottom.
• Add an option to discount critical strikes and savage blows from DPS.

⚓

2023-05-03

• Renamed max DPS to DPS sum, and max damage to damage sum.
• DPS now accounts critical strikes and savage blows.

⚓

2023-04-30

• Now custom gacha can detect and guess the first event used for it.
  • If there's an exact event for that, show it.
  • If it shares the same seriesID with an event and is similar to that, show it.
  • If no events for the same seriesID, show the most similar regardless.
  • If there's really nothing, hint which ubers/legends as before, without duplicated.
• By default custom gacha uses the predicted rates from the guessed event. Note that prediction can be wrong. For example, gacha 328 and 355 are wrong. Be careful and double checking is advised.

⚓

2023-04-29

• Dynasty Fest and Royal Fest rates are added to the predefined rates for customized gacha.

⚓

2023-04-27

• We can finally adjust the cat level to show. You can't put level more than what's allowed in the game.
• It also shows the growth rate so you have an idea when it can be become marginal.

⚓

2023-04-17

• Show what exactly the effects it's triggering for each attacks.
• Mention that you only need to find the seed once in help/seek.

⚓

2023-04-16

• Properly detect mini-surge from regular surge.

⚓

2023-04-09

• Renamed "Damage interval" to "Attack cycle" for stats.
• Fix server error when multiple same queries are added in the URL. Now it'll just look at the last value and ignore all the previous ones.

⚓

2023-01-31

• From now on, cat links will lead to in site cat page showing stats, rather than the previous battlecats-db site. You can still access the battlecats-db site from there. My Gamatoto is also listed for comparison.
• It's still under development so changes will be made moving forward.

⚓

2023-01-29

• Event query in the URL will now be hidden if it's the current event.

⚓

2021-11-22

• From now on, linking to this page requires setting referrer from the main site as well.

⚓

2021-11-13

• From now on, linking to the tsv files requires setting referrer from the main site.

⚓

2021-09-28

• Seed is positive and cannot be more than 2³², so we limit the input within that.

⚓

2021-09-20

• Given that recently the queue for seeking seeds are way too large (1000 ~ 3000), and someone might be potentially abusing the system by constantly seeking seeds, effectively making Denial of Service (DoS) attack.
• Now the same IP can only enter the queue for once. Or the same IP has to be waiting for 10 minutes before it can enter the queue again. I hope this can make it more fair for regular users.

⚓

2020-12-24

• Fix displaying Platinum and Legend gacha properly, again. It should show the current active ones and all the upcoming ones.

⚓

2020-12-13

• Add predefined Legend gacha rate for customized events.
• Properly handle Platinum gacha and Legend gacha. Both should just show the current and upcoming ones.

⚓

2020-12-12

• Made it possible to select the text in the cells again.
• Fixed tracking/highlighting path when it rerolled 2 times and in B track. (in A it's correct) Here's an example:
  • 5B -> 8B was wrong. It should be 5B -> 7B, therefore guaranteed for 3A "AAA Wunder" is wrong.
  • In track A now it's 4A -> 6A, which is correct, therefore guaranteed for 1B "Eva Unit-01" is correct for the same slot.
• Fixed tracking/highlighting path when it rerolled 3 times. Both tracks were wrong. Here's an example:
  • 3A -> 6B was wrong. It should be 3A -> 5B.
  • 6B -> 10A was wrong. It should be 6B -> 9A.
• Note that in all cases, the links are all correct, but the shown arrows and guaranteed through the path could be wrong. All of them should be fixed now.

⚓

2020-10-04

• Good-Luck Ebisu is added to the list of exclusive cats.

⚓

2020-09-06

• Fixed some other edge cases for highlighting with a last rolled cat. Some examples showing such edge cases:
  • Guaranteed from 1AR to 2BG
  • Guaranteed from 1AR to 2BRG

⚓

2020-04-27

• Added a theme option where you can pick mkweb colorblind friendly theme.

⚓

2020-04-26

• Added first legendary or uber cat's name and last uber cat's name to the customized gacha name. For example, if you see Splendid Ganesha as the last uber's name, it's likely that it's a platinum gacha. If it's uberfest or epicfest, then it's likely with Radiant Aphrodite. If the first name is a legendary uber, then it's likely that regular gacha.
• If the customized gacha contains a cat which is not available in the game, for example, there are a few exclusive BCJP cats which don't exist in BCEN, but their corresponding gacha are still in the game, those would show with a question mark and will not show any tracks at all. Previously, the site will crash if that's the case. So this is a bug fix.

⚓

2020-04-20

• Added predefined rates you can pick from:
  • Regular
  • Regular without legend
  • Uberfest / Epicfest
  • Superfest
  • Platinum
  • Customize...
  The last one, of course, will give you back 3 input fields to enter the numbers.

⚓

2020-04-19

• Owned cats encoding revised. Previously, it was a list of cat ids, compressed and base64 encoded. It turned out that it was super long. Now we just use a bit mask using bit fields to indicate the cat ids, and use radix 62 to encode the integer. This turned out to be pretty concise that turning 912 characters into 89 characters, about 10 times better.
• We also changed the query name from owned to just o. I would prefer spelling it out but we need a different name to distinguish them.
• We also redirect to the canonical URL while picking cats.
• Reverse the list of cats, putting the latest on the top so it's easier to tick new cats.

⚓

2020-04-13

• We now redirect you to the canonical URL if you're not at it. Note that every time you change something in the control panel (e.g. switching the event), you'll move to non-canonical URL. It wasn't a big concern when we didn't have so many options, but since we're having more and more options, it's adding up. This effort is trying to keep the URL short.
• Ideally it should not redirect you, but just stick with the cleanest canonical URL when you touch the control panel, but I just hate writing JavaScript so simply redirecting from the server is so much easier to implement, and it seems fast enough anyway.
• Fixed a bug where last rare cat wasn't considered as a potential dupe while highlighting. This was a long standing bug which has nothing to do with the URL cleanup.

⚓

2020-04-04

• Added a way to customize an event with any gacha id and probabilities. For example, it's possible to peek Superfest even when there's no event data yet.

⚓

2020-03-22

• Fixed an edge case where guaranteed cats might be missing for some cells. It was happening when one of the cells had a dupe from both A and B, and when that happened next cat data would be lost causing missing guaranteed. It was only discovered with Merc Storia because it has the most dupes.

⚓

2020-01-23

• Highlight the middle 5 rolls differently for step-up events. This may help you plan out when we have multiple step-up events happening at the same time.
• Added 7-rolls guaranteed. Again this may help if you're switching between step-up events.
• Added cat db links in the cat list in detailed mode.

⚓

2019-12-31

• Added a new feature so that you can pick which cats you owned from the cats list.
• When you pick the cats, it'll save the list in URL with owned query string, which can be very long if you have a lot of cats.
• Cats which you owned will be low-lighted with azure color, making it less obvious even if it's an uber cat.
• Color priority updated to: Legendary > Found > Owned > Exclusive > others
• Legendary cats are too rare so it should never be hidden.
• Two links to help you pick all and drop all, in case you have almost all cats already, so it'll be easier to tick off cats you don't own yet.

⚓

2019-12-28

• Added some new sections in the help page:
• New section about Consecutive duplicated rare cats.
• A placeholder for Bouncing with consecutive duplicated rare cats.
• A placeholder for Not necessarily a consecutive duplicated rare cat.
• A placeholder for Skipping with a platinum ticket.
• A placeholder for Higher chances with repeated cats.

⚓

2019-12-22

• Fixed some bugs in the new highlighting system. It should be more consistent now.
• Help page highlighting and guaranteed steps are fixed.

⚓

2019-12-18

• This is a late update log from 2019-12-22. It was released earlier because I want to update event data, and I didn't bother to branch it.
• Now we use R to indicate a rerolled cat. For example, 11AR is the cat at 11A rerolled into. 11ARG is the cat at 11A guaranteed, but starting from the rerolled position.
• Highlighting system is greatly improved. Now it can properly highlight if you would be picking the rerolled cat or not.
• In the new highlighting system, you can click on the upper part of a cell, which will automatically find which cats you'll be rolling into, from the past to the future. Your cursor will show a "help" icon in this case.
• Or you can click on the lower part of a cell, just beside the cat's name. In this case, the system will specifically show how it'll work if you're rolling into that specific cat. Your cursor will show a "plus" icon.

⚓

2019-12-09

• Guaranteed columns should be fully working for 8.6+ now. You don't have to set force guaranteed to 2 and count manually anymore.
• Guaranteed columns may have two rows when there's a dupe rare, because you might be starting from the re-rolled cat, and in that case you need to look at the second row.
• Highlighting the rolling path is done for 8.6+. Try clicking on the cells.
• The super duper edge case for duplicated collaborate rare cats has been fixed. Everything should be predicted correctly now.
• 8.6+ is no longer considered experimental. There are still improvements I want to make, but all the basic functionalities are there. Next I'll improve the highlighting that it'll only highlight the exact cats you'll get.

⚓

2019-08-06

• The weird hacky next_seed mode is now dropped, because the seed seeker can properly handle that now.

⚓

2019-07-28

• Sorry for the long wait. I have been pretty busy recently :(
• Added a section about known bugs in this page.
• The bug that giving a wrong re-rolled cat upon duplicated collaborate rare cat has been fixed.
• The bug had two consequences:
  1. It might give the wrong re-rolled cat upon duplicated collaborate rare cat.
  2. It might give you the wrong destination, not just wrong cat.
• You can check seed 1815690119 to observe this. On 6A, the re-rolled cat should move you to 8A, rather than 7B. On 10A, now it's giving you a Tin cat rather than Mari cat, but move you to the same destination.

⚓

2019-06-22

• For seeking the seed, use 8.5 and hope you don't run into a duplicated cat. 8.6 is disabled for seeking the seed for now, because it's not working properly.

⚓

2019-06-13

• Since 8.6 is released for EN/TW/KR, we decided to put up a workaround for showing guaranteed ubers before an actual solution is done:
• The default version is now switched to 8.6+ (experimental). It's still marked as experimental because guaranteed columns are not properly done yet.
• The workaround is that now we allow you to simulate the guaranteed ubers with just 2 rolls. This means the guaranteed uber showed in 10A will be the same as the old guaranteed uber showed in 1A, assuming that you didn't have any duplicated rare cats sitting in the middle, switching your tracks. This will be accurate if you know what you're doing.
• Consult with an expert on this if you don't understand.
• Highlighting is not done for 8.6+ yet.

⚓

2019-06-05

• More updates for the experimental 8.6+ support. Keep in mind it might not be always correct!
• Now you'll know which re-rolled cat you'll get.
• A lot of edge cases are properly handled now.
• Highlighting and guaranteed uber is still working in progress.
• Seed seeking will not be worked on before we're sure the tracking is correct.

⚓

2019-06-02

• Added experimental 8.6+ support. Keep in mind it might not be always correct!
• When the same rare cat was rolled in a row, the game will not just give you a fixed rare cat now, it'll instead move the seed at least once (we don't know if it's always just once yet) to roll another rare cat for you, therefore it'll switch your track!
• We don't know how the newly re-rolled rare cat is determined for now, nor do we know if this will affect another re-roll when the next cat happens to be the same as the re-rolled cat again.
• The page will now try to remember the last cat you rolled, making sure 1A can be determined correctly. 1B is ignored in this case.
• Highlighting is disabled for 8.6+ for now, because it might not be accurate due to switching upon duplicated rare.
• Guaranteed roll is disabled for 8.6+ as well, again because it might not be accurate due to switching upon duplicated rare in the middle.
• You can still get the same super rare cat in a row. The same is assumed for ubers and legendary cats. Only rare cats have this re-rolling effect.
• The page will now remember what's your last rolled cat. This will be used for the experimental 8.6+ support, but it has no use prior to 8.6.

⚓

2019-05-27

• Updated version option so that 8.5 is just 8.5. It doesn't work for 8.6
• Show the slot code as the prefix for seed seeking.

⚓

2019-04-25

• Added an option to select the version. Both 8.4 and 8.5 should work.

⚓

2019-03-03

• Fixed a bug crashing help page if details is checked.

⚓

2019-02-12

• Add a third link in the seeking result if 10 cats were filled.
• Help messages for seeking the seed is updated accordingly.

⚓

2019-02-06

• Update event data for 8.2 for BCEN and BCTW.
• Add support for BCKR.

⚓

2019-01-30

• Cache for TSV files raised from 300 seconds to 600 seconds. Use curl or JSON if you can't wait for it to expire.

⚓

2019-01-26

• I won't update this page merely for event data update any more. Not worth the troubles.
• Now we serve event data links in this page.
• Remove 世界一即戦力になるにゃんこ達！ which lasts to 2030 for BCJP because that's for older version (8.1-) and we have another properly scheduled event for it, too.
• More margin-bottom for ul, remove hr.
• Now we preserve as much as arguments on query string.
• Merge simulation for guaranteed into the same row with find cats.
• Remove unuseful home page link in the bottom.

⚓

2019-01-11

• Update BCEN and BCTW event data
• Update data source link to GitLab

⚓

2019-01-07

• Update BCJP event data

⚓

2018-12-29

• Use cell cursor for the table cell so it's more clear they are clickable.
• Add a new feature that we can click on the table cell and it'll highlight the rolled cats. Stands for regularly rolled cats, and stands for consecutively (11 or 15) rolled cats. Indicates the next position after the rolls. Highlights are not preserved for now because it's not very easy to implement based on the current approach. Maybe we can do that later if needed.
• Fix a bug that "Exclude guaranteed" wasn't preserved.
• Add white background to guaranteed column if there is a cat. This should make it more visually consistent.

⚓

2018-12-28

• Add change log page with cat job icon
• Add titles to help page and seek page
• Slightly enlarge the sniper cat icon to make it more visually balanced

⚓

2018-12-27

• Move the server under control of systemd from screen. This should greatly increase the stability of the site, because systemd will restart the server once it crashed. Previously, I have to restart it manually.

⚓

2018-12-26

• Views are now rendered by tilt and it should improve the performance a bit
• Now views are also cached once the server started. This avoids crashing when the code is updated yet the server is not restarted yet. The server may not be restarted immediately if someone is trying to find the seed. So this should improve stability.
• Some smaller bugs and text are fixed/updated

---

Help / Source © 2018-2026 Lin Jen-Shin (godfat)