When a cat is caught, the bot randomly picks a new time according to the channel's timing settings. The bot then saves this target time to the database and creates a task which waits until that time hits to spawn another cat.
When the time comes, the bot randomly picks a cat type (based on the spawn chances) and sends it to the channel. If it fails due to missing permissions or deleted channel it will unsetup the channel to prevent further errors.
It will choose the default if there is no custom spawn message.
The default spawn message looks like this:
{emoji} {type} cat has appeared! Type "cat" to catch it!
The default catch message looks like this for most cats:
{username} cought {emoji} {type} cat!!!!1!
You now have {number} cats of dat type!!!
this fella was cought in {time}!!!!
| Icon | Cat Type | Special Caught Messages |
|---|---|---|
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Sus | ![]() |
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Rickroll | ![]() |
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Reverse | ![]() |
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8bit | ![]() |
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Corrupt | ![]() |
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Professor | ![]() |
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eGirl | ![]() |
When the first 3 people catch cats too late (up to 5 seconds after initial catch but can be interrupted by next spawn), they will still get the cat, although without any boosts (prisms, catnip, and blessings), but the progress of bounties, quests, or the tutorial will still happen.
The message looks like this:
:pointlaugh: Late {emoji} {type} catchers:
{username} ({extra time}, {number} total)
(upper repeated up to 3 times)
-# up to 3 late catchers within 1s get +1 cat without boosts
See Cat Types.
Starting a rain pauses the normal spawn cycle and forcibly spawns cats randomly every 2.5-3 seconds.
There is a set amount of cats spawned in each rain, calculated as rain duration in minutes * 22.
When Cat Bot finishes starting up, it goes through every channel in which the target time is in and spawns a cat in them. This covers spawns which should have occurred during the restart.
Additionally, every 5 minutes, a loop is run to check for any channels which are past due, either due to their tasks getting killed by the restart or something going wrong somewhere in the process.
Cat Bot keeps track of active channels to ensure that no duplicate spawns occur, maintaining a smooth and balanced spawning cycle across servers.
It also logs spawn and catch events to improve performance tracking and help identify any bugs or timing issues.
This loop also handles saving cookies, updating status, posting stats to Top.gg, sending vote, quest, and timed reminders, as well as database backups.
/setup, as well as setting up the bot, spawns the first cat to bootstrap the above infinite loop.
/forget makes the bot forget about any spawned cats as well as marks the channel as unsetup to prevent any ongoing spawns.
/forcespawn forces a cat to spawn, overriding any ongoing spawn tasks.
Due to how spawning works, /changetimings will only take effect after the next catch.
Spawn and catch messages can be modified with the /changemessage command.
/setup command in the channel where you want cats to appear./forget and then /setup again in the channel where you want cats to spawn./forcespawn to force the cat to spawn.Here is a brief overview of what happens when you send cat:
/preventcatch modePick next spawn time
Calculate catch time
Determine cat type (for cats which spawned before February 11, 2025 and weren't caught yet).
/changemessage.
Calculate the prism boost chance.
Handle powerups such as blessings and catnip.
Randomly advertise Cat Rains (1/8) with "☔ get tons of cats and have fun: /rain" (changes during sales)
/plush last chance (+badge!)"Randomly show a fun fact/hint about itself (1/20). For example, it may say "View all cats and rarities with /catalogue".
Do tutorial if haven't completed yet:
/tutorial to get started (includes a free gift!)"/tutorial to continue"/tutorial (includes a free gift!)"Choose either the channel's custom catch message or a cat themed one (if any).
Note: Custom catch messages take priority.
Choose a button to attach.
The last four buttons above all link to Cat Stand, the support server.
If needed, does the following in order:
Detect if a rain ended unexpectedly (it might take a couple catches as the check is only run a bit after the rain should have normally ended).
Sleep until the next decided spawn time.
Spawn a cat, and repeat.
floor(rain time + 600 * 1.3) from floor(rain time + 600 * 1.2) since August 24th 2025.