What Is KOTAMON? Full Game Name, Release and Gameplay
The searchable short answer to KOTAMON's unusually long Steam title, release date, developer, core gameplay loop, and content warning.
Updated 2026-08-25 · Evidence-backed · Spoiler-aware
Section 01
The full KOTAMON title
The official Steam title is '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.' KOTAMON is the official name at the beginning of that title and the practical short name used by players, streamers, and this guide.
Section 02
Why players shorten the name
The subtitle describes the entire premise in the style of a long light-novel title. Reddit users encountering the game through a card reference repeatedly asked what it was called, while others remembered only fragments of the subtitle. Searching for KOTAMON plus a task such as cards, figurines, or foil is much more reliable than typing the complete name.
Section 03
Release, developer, and platform
KOTAMON released on Steam for Windows PC on August 20, 2026. It was developed by KotaMota Games and published by Polnoch. Steam lists single-player play, achievements, Steam Cloud, stats, and Family Sharing, with interface support for 15 languages.
Section 04
What you do in KOTAMON
You work as a garbage collector at a dump, search trash for recyclable objects and collectible cards, complete orders, improve your carrying and search abilities, and look for hidden treasures. The long-term collection goals include color card sets, foil variants, figurines, audiotapes, outfits, and 40 Steam achievements.
Section 05
Is KOTAMON a card battler?
Trading cards are a collection and economy system inside a first-person simulation game, not evidence of a competitive deck-building mode. Public store material focuses on finding, keeping, repairing, and selling cards rather than building a combat deck.
Section 06
Content warning
Steam tags the game for Sexual Content and Hentai alongside Casual, Relaxing, Cute, and Simulation. Some parody card illustrations and references are suggestive. Review the official store media before buying if that content affects your decision.
Sources
- KOTAMON Steam Store Page — Official title, release date, developer, publisher, platform features, languages, tags, and gameplay description.Checked 2026-08-25
- Reddit r/Hololive discussion — Community evidence that the long title makes the game's name difficult to identify and remember.Checked 2026-08-25