Mewgenics Surpasses 1 Million Copies, Becomes Steam’s Most Played Roguelike

Mewgenics has officially crossed 1 million copies sold in its first week, while also breaking Steam’s all-time concurrent player record for a roguelike and confirming future DLC and console plans.

Image credit: Edmund McMillen, Tyler Glaiel

Mewgenics Becomes a Million Seller in Just One Week

After more than a decade of on-and-off development, Mewgenics has turned into one of 2026’s biggest indie success stories. The turn-based tactical cat breeding roguelike launched on February 10 and wasted no time dominating Steam’s charts.

Co-creator Tyler Glaiel shared on social media that the game has now surpassed 1 million copies sold. That milestone came just seven days after release. For a PC only launch, that is a massive achievement.

The momentum started almost instantly. Within three hours of release, Glaiel confirmed the team had already recouped the entire development budget.

Sales continued to skyrocket from there. Mewgenics sold 150,000 copies in its first six hours. Just 36 hours in, that number had jumped to half a million. In Glaiel’s own words, “wtf”.

Steam Concurrent Players Record Broken

Sales were not the only record falling. Mewgenics reached a peak of 115,428 concurrent players on February 15, as per SteamDB data. That figure makes it the most played roguelike in Steam history based on peak concurrent users.

The previous record holder was Hades II, which had peaked at 112,947 concurrent players in September 2025. Mewgenics surpassed that by 2,481 players.

For context, even the original Hades peaked at 54,240 players. Meanwhile, Vampire Survivors reached 77,061, and Balatro topped out at 43,905.

From Development Hell to Indie Powerhouse

Mewgenics was first announced back in 2012 as a follow-up to Super Meat Boy. The project was canceled, revived, and reshaped multiple times. For many fans, it became a symbol of development hell.

That changed when Edmund McMillen (best known for his work on The Binding of Isaac) and Glaiel brought it back in 2018. After years of quiet progress, the game finally locked in its February 10, 2026 release date.

Reflecting on the journey, McMillen admitted the original cancellation “was quite depressing,” but finishing it now feels like “a ‘SEE I TOLD YOU SO!’”

Critically, the game is performing just as well as it is commercially. It currently holds an 89 score on Metacritic and a “Very Positive” user rating on Steam. Reviewers have praised its deep generational breeding systems, tactical combat, and the sheer amount of content packed into each run.

McMillen has said an average player can expect “200+ hours to beat the game.” That kind of scale helps explain why engagement numbers have stayed high beyond launch week.

Console Port in Development

With success on PC secured, fans are naturally asking about consoles. In a reply to a fan on X, McMillen confirmed that work is already underway.

“Working on it now, not sure when it will be done, though, but at this point it might be in Dev for all systems”.

No specific platforms were named. However, McMillen’s previous titles, including The Binding of Isaac and Super Meat Boy, eventually launched on consoles including Xbox. While nothing is confirmed yet, there is clear precedent for his games expanding beyond PC.

DLC Plans Confirmed, But Not Soon

Additional content is also planned, though fans will need to be patient. On Reddit, McMillen explained that the team has “a rough idea of something small, like a few more classes and more areas etc but dont wanna start on it till we fully understand what people really like about the game.”

He added, “I assume it will take a year from when we start to release a DLC.. Maybe?”

Importantly, the DLC will be paid, not free. Glaiel also teased that deeper secrets and even ARG-level content are being saved for future expansions.