Released Aug 20, 2026 $6.29 Very Positive Counts toward your Steam games

KOTAMON: My Sis Found A Super-Rare Card In Her Cereal Box, So I Became A Garbage Man To Find The Entire Collection And Earn $1,000,000

By KotaMota Games · published by Polnoch

Casual Simulation Trading Card GameSexual ContentHentaiRelaxing 3D Colorful First-PersonCuteHand-drawnImmersive Sim

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Reviews 3,154 Very Positive

Players now 307 Peak today 307

Followers, 30 days — Not enough history yet

KOTAMON: My Sis Found A Super-Rare Card In Her Cereal Box, So I Became A Garbage Man To Find The Entire Collection And Earn $1,000,000 is a game tagged Casual, Simulation and Trading Card Game by KotaMota Games, released Aug 20, 2026. It has 3,154 Steam reviews (Very Positive). The Steam games most like it include Leaf Blower Co., Neko Doll and vissekom.

Clearing trash can feel even better when you not only make the world cleaner, but also find extra-rare cards that have suddenly increased in price! Rummage through garbage, fulfill the orders from the dump site owner, look for hidden treasures... and collect all the Kotámons!

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<a href="https://launchrivals.com/games/4294490-kotamon-my-sis-found-a-superrare-card-in-her-cereal-box-so-i-became-a-garbage-man-to-find-the-entire-collection-and-earn"><img src="https://launchrivals.com/games/4294490/badge.png?theme=light" alt="KOTAMON: My Sis Found A Super-Rare Card In Her Cereal Box, So I Became A Garbage Man To Find The Entire Collection And Earn $1,000,000 launch date" width="320" height="84"></a>

Leaf Blower Co. 71% match · Casual, Simulation, Relaxing
Neko Doll 70% match · Casual, Simulation, Sexual Content
vissekom 69% match · Casual, Simulation, Relaxing
My Wife Threw Out My Card Collection (So I Bought a Dump to Find Them All) ⭐ 69% match · Casual, Simulation, Trading Card Game
Ichigo's Study Sessions 64% match · Casual, Simulation, Sexual Content
Model Railway Easily 2 63% match · Casual, Simulation, Relaxing
Clean It Up! 63% match · Casual, Simulation, Relaxing
Emergency Cleanup Co. 63% match · Casual, Simulation, Relaxing
Find 100 Ducks and Blast Them...IN SPACE!!! 63% match · Casual, Simulation, Relaxing
+ PC Maker 63% match · Casual, Simulation, Relaxing

Steam data

Everything Steam lists for KOTAMON: My Sis Found A Super-Rare Card In Her Cereal Box, So I Became A Garbage Man To Find The Entire Collection And Earn $1,000,000 · record updated 1 day ago

Steam store

Overview

App ID4294490

Release dateAug 20, 2026

Last change number40220549

Last record update1 day ago

App type: Game
Developer: KotaMota Games
Publisher: Polnoch
Steam profile: Counts toward game count and achievement totals · checked 23 hours ago
Technologies: Unity detected

Windows 64-bit

Steam Deck: Playable
Controller: Full support

Single-playerSteam AchievementsStatsSteam CloudSteam Trading CardsFull controller supportPlayStation controllersXbox controllersPlayStation controller BluetoothHDR availableFamily Sharing

Prices

Price · US$6.99

On sale0 of 41regions right now

Lowest seen · US$6.99Oct 23, 2026

Checked3 hours agoin 41 regions

PolandzłPLN

Every price change is kept from Oct 23, 2026 on. Pick a region below to compare.

Patches

Oct 1, 2026 ULTRA UPDATE AND AUTUMN SALE!
Hiya, kittens! Great news! The Kotámon is taking part in the Steam Autumn Sale, so it'll be discounted all next week. By the way, the discount is even bigger than the launch one. Buuut there's more!As promised, Kota and I made a SUPER-DUPE…
Jun 18, 2026 GIGA patch
We've prepared a huge update for Kotamon! Even if you've already played the demo from beginning to end, it's a great reason to play it again, as it features: A new minigame! You'll find card fragments in the trash. Once you've collected fi…

Build	Branch	Updated
26089908	public	Oct 21, 2026

Packages & DLC

ID	Name	Price (US)
5015110	Not on the store yet	—

Depots

ID	Name	Systems	Size	Download	Manifest
4294491	—	All	963.1 MB	696.1 MB	4426536431445513045

Branch	Build	Updated	Access
public	26089908	Oct 21, 2026	Open

Configuration

Install foldersteamapps/common/KOTAMON My Sis Found A Super-Rare Card In Her Cereal Box, So I Became A Garbage Man To Find The Entire Collection And Earn $1,000,000

Executable	Arguments	Systems	Description
Kotamon.exe		Windows

Space per player95.4 MB

Filesup to 100

Save locations1

Root	Path	Pattern	Systems
WinAppDataLocalLow	KotaMota Games/Kotamon	*	Windows

Achievements

Achievements530 hidden

Most unlocked98.1%Wow, It Works?

Rarest2.3%Lord of Trash

Wow, It Works? Turn on the radio. 98.1%
Removal Recycle 7 garbage bags. 97.5%
A Nice Start! Collect your first card. 97.5%
My Better Self! Buy an upgrade. 96.6%
Lucky #1 Dime Have $1,000 95.7%
Exhibit A Find a collectable figurine. 95.5%
Barley a Beginning Drink 12 cans of beer. 95.3%
3-Pointer Hit the trash compactor tray from 10 meters. 93.8%
Push the Tempo! Find an audiotape. 93%
Sharpshooter Hit the trash compactor tray from 20 meters. 89.1%
Thanks for All the Beers Drink 42 cans of beer. 87.5%
Cleanup Recycle 69 garbage bags. 86.8%
Where Will I Keep It? Find 5 collectable figurines. 82.7%
Just Don't Eat It! Open a cereal box. 78.3%
I Have the Power! Buy 20 upgrades. 76.2%
Is That All? Remove all the garbage in the yard. 67.9%
Olympic Thrower Hit the trash compactor tray from 30 meters. 67.8%
A Gift for Jenny Find a cosplay outfit. 66.7%

All 53 achievements

Lager than Life Drink 146 cans of beer. 66%
Savings Account Have $10,000 62.5%
Recycling Recycle 256 garbage bags. 62.1%
Retro Party Find 5 audiotapes. 61%
Water-walker Collect the full blue card set. 59%
The Dark Master Collect the full purple card set. 58.8%
Firestarter Collect the full red card set. 58.7%
Airbender Collect the full white card set. 58.7%
Champion Upgrade a stat to its MAX value. 58.5%
Melomaniac Find 7 audiotapes. 48.3%
Get 'em All! Get Kotalion. 45.4%
A New Hobby Find 9 collectable figurines. 45.1%
Power Overwhelming Buy all the upgrades. 38.6%
To Be Continued… Find 3 cosplay outfits. 34.7%
Gacha Addiction Open 10 cereal boxes. 29.1%
Rainy Day Fund Have $50,000 28.7%
Junk Expert Collect 100 pieces of any type of trash. 28.1%
Good as New! Repair 10 cards. 27.4%
Squeaky Clean! Clean Up 10 Cards. 26.4%
I Need a Bigger Shelf Find 12 collectable figurines. 26.3%
Why Don't You Spend It?! Have $100,000 25.7%
Modern Art Open the Trash Gallery. 20%
Rumble King Collect the full Brawler card set. 17.3%
Tape ’n’ Glue! Repair 100 cards. 15.8%
Annihilation Recycle 999 garbage bags. 13.5%
Card Detailing Clean Up 100 Cards. 12.1%
Trash Connoisseur Collect 1,000 pieces of any type of trash. 11.3%
A True Fan Collect a full set of foil cards. 10.7%
Sixy Outfits Find 6 cosplay outfits. 9.7%
Many Hoppy Returns! Drink 1000 cans of beer. 9.3%
The Collector Collect all foil cards. 8.1%
Puzzle Master Repair 300 cards. 6.9%
Wash ’Em All! Clean Up 300 Cards. 4.1%
Limit Breaker Collect the full set of Limited cards. 3.4%
Lord of Trash Collect 1,000 pieces of each type of trash. 2.3%

Update history

Oct 25, 2026 · 13:01 #40220549
- common.store_tags.19 ~~6650~~ → 1742
- common.store_tags.3 ~~12095~~ → 1654
- common.store_tags.4 ~~9130~~ → 12095
- common.store_tags.5 ~~1654~~ → 9130

News

Oct 21, 2026 · Community Announcements Controller Support, Changing Seasons, New Trash
Hey, kittens!We're giga-happy with how warmly you welcomed the Autumn Update! What really touched us, though, was the reaction from the artists whose artwork we added to the game. Some of them were l…
Sep 6, 2026 · Community Announcements CRASH AND INFINITE LOADING FIX
Great news, kittens! We've finally figured out why many players weren't able to launch the game, and we've also found the reason why other players were having broken saves and the game going into an …
Sep 5, 2026 · Community Announcements We fixed infinite loading, crashes and broken saves... PROBABLY
Some players have reported that the game won't launch.For others, the game worked, but then crashed or entering an endless loading screen.The good news is that we've found the cause and seem to have …
Sep 1, 2026 · Community Announcements Steam cards!
Great news, kittens! Steam-chan, having pretty much frayed our nerves with her edits, still approved the collectibles - cards and badges! This means that the longer you dig through the trash, the mor…
Aug 27, 2026 · Community Announcements CARD UPGRADES and a ton of bug fixes
This will be a long post, but those who read it all the way to the end will be hooked—there's a bonus comic!Cards can be exchanged for BETTER ONES. A huge number of players have complained that dupli…
Aug 22, 2026 · Community Announcements Long-awaited mouse smoothing fixes... and more!
We continue to review feedback and improve the game! In today's "Bugs&Fixes" episode: MYSTERIOUS DISAPPEARANCE OF GARBAGE BAGS Many players have noticed that garbage bags occasionally disappear from …
Aug 21, 2026 · Community Announcements Large-scale rebalancing, saves, achievements!
We're trying to read your feedback and fix what we can quickly and efficiently (and it's not easy – remember, we're cats, we have paws). We're releasing the first major quick fix.Balance After the de…
Aug 20, 2026 · Community Announcements Kotámon: RELEASED!!!!!
The day has come. We all have been waiting for it. The road was long, hard, and not always straight, but we kept walking—stubborn as a cat heading for its bowl.Is it a good game? Heck if we know! Whe…
Aug 20, 2026 · Community Announcements KOTAMON is LIVE! | Ultimate Card Hunting Stream
Playing the game, hunting for ultra-rare cards & hanging out with chat.
Aug 15, 2026 · Community Announcements The release of Kotamon is August 20th!
There's only a week five days left until the release of Kotamon on August 20th... We're working incredibly hard, fixing bugs and adding cool stuff.Thank you for being with us!

Data from public Steam pages, updated daily; 5 days of history. LaunchRivals is not affiliated with Valve or Steam.

KOTAMON: My Sis Found A Super-Rare Card In Her Cereal Box, So I Became A Garbage Man To Find The Entire Collection And Earn $1,000,000

About KOTAMON: My Sis Found A Super-Rare Card In Her Cereal Box, So I Became A Garbage Man To Find The Entire Collection And Earn $1,000,000

Steam data

Overview

App info

Platforms

Features

Prices

PolandzłPLN

Americas 10

Europe 5

CIS 4

Asia-Pacific 15

Middle East & Africa 7

Patches

Patch notes

Builds

Packages & DLC

DLCs

Depots

Depots

Branches

Configuration

Launch options

Cloud saves

Achievements

Global unlock rate

Update history

Changes to the Steam record

News