Indie sensation Meccha Chameleon has reached another remarkable milestone, selling 15 million copies in just 25 days since its launch on Steam. The achievement means the multiplayer hide-and-seek title has surpassed the latest reported sales figure for Mario Kart World, cementing its status as one of 2026’s biggest gaming success stories.
The announcement was made by solo Japanese developer lemorion_1224 on the game’s official Steam page. Thanking players for their support, the developer wrote,
“We hit 15 million in sales! Thanks a million!”
They also teased
“a new collaboration with a famous Japanese star next week.”
Viral success continues to break records
Released on June 10, Meccha Chameleon quickly became one of Steam’s breakout hits thanks to its simple but addictive gameplay. Players disguise themselves by painting their characters to match the surrounding environment while avoiding hunters in fast-paced multiplayer matches.
The game reached 2 million copies sold in less than a week before accelerating to 15 million sales within 25 days.
According to market research firm Alinea Insight, Meccha Chameleon is currently 2026’s best-selling game, comfortably ahead of major releases such as Resident Evil Requiem, Forza Horizon 6, and Slay the Spire 2.
Its latest sales milestone also edges past Nintendo’s most recently reported figure of 14.7 million copies for Mario Kart World.

Low price fuels a massive audience
One factor behind the game’s rapid growth is its affordable price. Meccha Chameleon launched at $5.99, with an introductory discount lowering the price to $4.99.
Despite its budget pricing, estimates suggest the title has already generated between $75 million and $90 million in revenue. SteamDB data also shows the game peaked at more than 340,000 concurrent players, although player numbers have begun to stabilize following its explosive launch period.
Adding to the achievement, reports indicate the game was developed in roughly two months, although lemorion_1224 had previously experimented with similar hide-and-seek concepts for several years before releasing the final version.
