Sync your Steam wishlist to find the lowest game prices instantly. No login required, just paste your Steam profile URL! ⚡ Try Wishlist Radar!
Sync your Steam wishlist to find the lowest game prices instantly. No login required! ⚡ Try Wishlist Radar! Close

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 on Steam

Quick menu

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!

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 casual, simulation and trading card game game developed by KotaMota Games and published by Polnoch.
Released on August 20th 2026 is available on Windows, Steam Deck and Steam Machine.

It has received 2,624 reviews of which 2,152 were positive and 472 were negative resulting in a rating of 7.9 out of 10. 😊

The game is currently priced at 7.19€ on Steam.


The Steam community has classified 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 into these genres:

Media & Screenshots

Get an in-depth look at 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 through various videos and screenshots.

System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • Requires a 64-bit processor and operating system
  • OS: Windows 10
  • Processor: Intel Core i3 or analogue
  • Memory: 4 GB RAM
  • Graphics: GeForce 960 4gb VRAM or analogue
  • Storage: 3 GB available space

Steam Price & Best Deals

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

47 hours played
Sept. 2026
I find this game very cozy, I don't know why. It's very relaxing and grindy aswell. My gaming pc syndrome is gone, thanks devs! :D I'm glad there's real art in this game and not AI bullsh*t.
31 hours played
Sept. 2026
this should not be this fun! I am cleaning up TRASH while listening to Midi's on loop! this should not be this fun! I swear if anything was gonna be hiding a bitcoin miner it would be this. all of the cards are REALLY well drawn and yes they are all sexy references to video games, anime, Vtubers, and tv shows. at the moment the game does not have a 18+ patch for the cards but there are whispers they are in the works so I'm excited to see a whole new set of art with *cough cough* Less clothes *cough cough* and i really hope the popularity of this game being Safe to Stream but also having a sexy mode makes the dev's Richer than the queen of England, in our horrible AI world we need more human ran projects.
9 hours played
Sept. 2026
TL;DR: Pretty entertaining and simple, however it is very grindy and lacks some endgame quality-of-life features. Positives [*] Music : The music in this game is surprisingly very good, with Let's Rock This Junk, Sis! being an absolute banger of a song that I thoroughly get more motivated hearing whenever it plays. [*] Cards : I went into this game blind and was surprised when the cards had referenced characters I recognized from different media such as anime, vtubers, games, etc. and the effect description on some of these cards are pretty fun to read. [*] Gameplay Loop : The gameplay loop is very simple and I personally found it (for the most part) very enjoyable for a game that takes place in a single location. The upgrades are fairly priced and the stat changes (with the exception of Magnetism) are good. Negatives [*] Magnetism : This upgrade is useful, however the stat changes for it are lackluster even when fully upgraded. It's reach should extend further as all other aspects of endgame grind are handled pretty well but needing to stop and break away from the trash pile I'm working on to round the corner and aim at the compactor's bin kills the flow. [*] Cards Cleaning/Gluing : This mechanic is fun the first few times but becomes monotonous even for this game. Only having access to a toothbrush to scrub dirty cards and no upgraded tools becomes stale quick. As for the Glue Cards mechanic, it becomes boring VERY quickly as endgame mode has you clearing a small trash pile faster than gluing 10+ cards together. I wouldn't mind if there were special tools to buy or buying an expensive machine to automate it, even if it meant it would do the tasks much slower than player input. [*] Steam Achievements : The achievements are brutal, especially for the ones around foils where it's either grind away to earn cash to buy Cereal Boxes from Jenny if you maxed out your upgrades or spend forever cleaning/gluing cards and merging them into higher quality ones.
68 hours played
Sept. 2026
not even an hour into the game i was already obsessed with kotamon. partially because i'm extremely biased about anything that has catgirls and catboys in it. my ancestors would probably be disgusted seeing what kind of sh𝗶t i'm pouring my hours into these days, but this one is genuinely awesome for what it is. the loop is pretty simple- fill a bag, sell the bag, buy an upgrade, fill a bigger bag, repeat. it's not an idler and you should not buy it thinking it's gonna play itself for you, you WILL spend HOURS sifting through junk- occasionally finding a torn card fragment that you can glue back together into a whole one, a grimy but intact card you can clean, or a sealed cereal box stuffed with five cards at once. the last one is rare, as it should be, it's entirely the point of a game built on anticipation and occasional dopamine boosts. anything you find while digging around is bound to be of bad quality, but worry not, because you can exchange these for a better version of a certain card, and it's a whole another can of worms. which brings me to the reviews section, because honestly a lot of people are doing this game dirty. some are downvoting it for having slow progression and an energy system implemented- as if that isn't literally in the genre. if you go in blind expecting instant gratification, that's a you problem. 'a game where you have to grind has too much grinding boohoo'. me personally? because it has to be about me it's literally my review- every time i find ANYTHING card adjacent in these heaps of garbage i feel like a junkie hearing their plug pulling up. it's glorious. the game is also a treat to look at while you slowly train yourself into an addiction because every single card is individually drawn. every single one! and they're all so pretty!! just like all of them trash labels. and as an artist myself i'm actually ecstatic not seeing a single ai made thing here. the art direction is on top, the little comic interjections punctuating the grind are cute, and the 3d models, especially the figurines that you can also collect, are absolutely adorable. the attention to detail is honestly astonishing as nothing is half-assed. being fully saccharine :3 if you're one of the 'not recommended' crowd mad about the slow game no naked boobs thing- maybe touch grass idk. the missing point is it's starting to give me capral tunnel on hour seven you know what you did
75 hours played
Aug. 2026
It really depends on what you’re looking for. This is a very niche game, so read carefully before buying ... The most important thing is that the gameplay loop of this game is extremely repetitive. What you were shown during the first 5 minutes represents the entire upcoming 10 hours. The game is all about collecting trash and throwing it away (with a few additional tasks such as drinking or repairing cards). So, this can get boring quickly. It’s probably better suited for playing casually while listening to a podcast or doing something else. At its current stage (Aug 25, 2026), the quality-of-life features and progression are also quite limited, and those minor upgrades do just enough to remind you that things could have been better. Also, if you’re mainly interested in the hentai/nudity, don’t expect much. The outfits are mildly sexy rather than lewd, and the artwork is limited, so you’ll see the same cards repeatedly. I hope more updates (as well as 18+ patch) will come soon. So, currently, the game, for me, feels more like an early-access title than a finished product. I’m giving it a positive review mainly to encourage the developer(s) to keep updating and improving it. Without future updates, I’d have to give it a negative review.

Similar games

View all
Sakura Succubus Sakura Succubus is a lewd visual novel about amassing a harem of sexy succubi. Featuring a cute idol, a domineering businesswoman, and a spacey social media star, there’s no shortage of women to woo!
Similarity 71%
Price -93% 0.75€
Rating 7.6
Release 31 Mar 2020
Your Mom Your mom is here, come quickly to play happily with your mom.
Similarity 70%
Price 2.09€
Rating 9.2
Release 25 Dec 2025
Raising a Happy NEET A distant relative and NEET girl suddenly becomes your family. Together, you’ll begin a heartwarming and redemptive life together in this cohabitation sim.
Similarity 66%
Price 8.15€
Rating 8.5
Release 14 May 2026
Find 100 Ducks and Blast Them! Yes! In this 3D hidden object game, you must blast 100 toy ducks! Relax, take aim, and let the feathers fly! With light-hearted gameplay and cute ducks to hunt, it's a casual first-person experience full of wholesome, family-friendly fun!
Similarity 63%
Price Free to play
Rating 9.1
Release 05 Mar 2025
your wife Your Wife is an anime desktop companion game. Choose a character whose gaze follows your cursor, adjust her position and size, and pair her with static or animated wallpapers. Subscribe to and share characters and wallpapers through Steam Workshop.
Similarity 62%
Price 0.99€
Rating 9.2
Release 28 Nov 2024
Dream Date Date, communicate, enhance feelings and record good memories with girls!
Similarity 61%
Price 1.59€
Rating 8.2
Release 09 May 2020
Paint Girl Take you easy to make a two-dimensional beauty girl, the mode is easy and interesting, from line drawing to coloring, the whole painting process experience, you don't need painting experience to make your wife live~
Similarity 61%
Price 1.59€
Rating 7.9
Release 25 Sep 2020
Sakura Hime 2 Set off immediately on an exotic journey, getting intimately close with captivating beauties, and start from scratch to build your own luxurious harem.
Similarity 60%
Price -30% 2.90€
Rating 8.6
Release 22 Apr 2022
H-Rescue You want the girls ? You want to become a Hero ? You have to rescue em all ! H-Rescue is a game that combines match-2, simple puzzle and beauties. How the story goes is base on your choices, and the fate of the girls will be in your hands. Beware the bad choices. But first, CAN YOU RESCUE EM ALL ?
Similarity 60%
Price 1.59€
Rating 7.3
Release 29 Jan 2020
Through time the girl puzzle "Gentleman puzzle, relying on puzzle skills and skills to keep moving into the hearts of various beautiful girls! "
Similarity 60%
Price Free to play
Rating 8.9
Release 07 Sep 2023
Sakura Hime 3 Arrive at the Cherry Blossom Garden and spend a sweet daily life with beautiful girls. Faced with their continuous barrage of temptations, how many days can you hold out?
Similarity 60%
Price -30% 2.90€
Rating 8.8
Release 16 Dec 2022
West Sweety Welcome to the bar in the wild west, in this game, you roled a cowboy, use bullets & the wisdom of luck to conquer the beauty...
Similarity 60%
Price 1.59€
Rating 8.0
Release 13 Dec 2019

Frequently Asked Questions

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 currently priced at 7.19€ on Steam.

No, 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 currently not on sale. You can purchase it for 7.19€ on Steam.

Yes, 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 received 2,152 positive votes out of a total of 2,624 achieving a rating of 7.90.
😊

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 was developed by KotaMota Games and published by Polnoch.

Yes, 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 playable and fully supported on Windows.

No, 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 not playable on MacOS.

No, 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 not playable on Linux.

Yes, 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 playable on Steam Deck, though it might require a few minor tweaks. Make sure to check the Steam store page and community feedback on ProtonDB for exact compatibility details.

Yes, 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 playable on Steam Machine, though it might require a few minor tweaks. Make sure to check the Steam store page and community feedback on ProtonDB for exact compatibility details.

No, 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 does not support VR.

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 single-player game.

Yes, there are 2 DLCs available 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. Explore additional content available 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 on Steam.

No, 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 does not support mods via Steam Workshop.

No, 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 does not support Steam Remote Play.

Yes, 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 enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 24 October 2026 12:51 UTC
SteamSpy data 14 October 2026 17:31 UTC
Steam price 24 October 2026 03:43 UTC
Steam reviews 22 October 2026 10:08 UTC

If you'd like to dive deeper into the details 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, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam 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
  • SteamCharts - Analysis of 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 concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck 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 compatibility
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
Rating
7.9
2,152
472
Game modes
Features
Online players
530
Developer
KotaMota Games
Publisher
Polnoch
Release 20 Aug 2026
Platforms