Indie roguelike Mewgenics sells over 1 million PC copies in launch week

Mewgenics hit a breakout milestone within days of its February 10 PC launch, selling more than 1,000,000 copies on Steam in its first week, a figure Tyler Glaiel confirmed on X and one Alinea Analytics flagged in Notebookcheck’s reporting. The game’s creators, Edmund McMillen and Tyler Glaiel, watched the numbers climb while celebrating with a cat-shaped cake and a social graphic shared with fan art from X user @dailymewgenics.

Financial and concurrent-player figures diverge across analysts. Notebookcheck, citing Alinea Analytics, reported Mewgenics had generated more than $23 million in its initial run and reached an all-time peak of 115,428 concurrent players on Steam. By contrast, GameDiscoverCo’s newsletter estimated revenue at more than $40 million and likewise restated a roughly 115k peak concurrent-user figure while calling Mewgenics the top February 2026 non-F2P Steam game of any age by that metric. Rogueliker reported lower concurrent peaks - 87,859 overall and a first-24-hour peak of 65,962 - and noted the differing tallies should be reconciled against Steam/SteamDB or developer-provided data.

The sales pace was shockingly fast. Rogueliker’s timeline shows the game recouped development costs in three hours, reached 250,000 sales in under 12 hours, and hit 500,000 in 36 hours. Hungarianconservative quoted developer remarks that the team “got blindsided by the numbers” and said Steam wishlists moved from about 400,000 before early reviews to roughly 600,000 after reviews, a jump developers found surprising because first-week sales normally trail wishlist totals.

Mewgenics arrives after a long gestation. GameDiscoverCo traced versions of the game back to 2011, with an initial announcement in 2012 and a restart of the current build in 2018. That pedigree helped: Edmund McMillen is the creator of The Binding of Isaac and Super Meat Boy, and Tyler Glaiel’s credits include Closure and The End Is Nigh. Glaiel told Rogueliker plainly, “I don't like Early Access and think it's a bad fit for most games, especially ones with an actual campaign,” explaining part of why the team shipped the finished PC release rather than rolling out an Early Access build.

Marketing execution played a measurable role, according to GameDiscoverCo. The newsletter reported a curated outreach to 700 highly relevant influencers that yielded 554 responses and 470 pieces of organic coverage within 48 hours, crediting a small firm called Guillotine for campaign work. GDCo also claimed 70 percent of Mewgenics players overlap with Binding of Isaac players - a 16.2x ‘normal’ overlap - which it tied to the title’s rapid uptake.

Critics and players backed the surge. Rogueliker listed a Metacritic score of 89, an OpenCritic 89 with roughly 95 percent of critics recommending the game, and a user score of 8.2. Notebookcheck noted a 10 percent Steam discount from $29.99 to $26.99 running through February 24. Developers are “actively exploring the possibility” of bringing Mewgenics to consoles, per Shacknews, making a console announcement one of the near-term items to watch alongside official revenue confirmation and reconciled concurrent-player data.