Mewgenics Sells Over 150k Copies in First 6 Hours; “This Is Beating Expectations by Quite a Lot”

Mewgenics, the cat-breeding tactics roguelike from the developer of The Binding of Isaac, has hit the ground running to say the least. It’s already made back the cost of its roughly seven-year development, blew past internal sales expectations, and is currently approaching the highest peak concurrent player count of Isaac itself – and it only launched today at 6am PT.

“So far this is beating expectations by quite a lot,” developer Tyler Glaiel tells IGN, saying it likely took less than three hours for development costs to be fully recouped. “Its a bigger launch than any of the Isaac expansions already, and its only been a few hours.”

His partner Edmund McMillen, best known for games like Isaac and Super Meat Boy, put just how wide of a gap that is into a perspective: “I think the highest sales day for any game of mine, release-wise, was [The Binding of Isaac:] Rebirth, and it sold 40,000 units I think day one.” By comparison, McMillen says Mewgenics sold around 152,000 copies in its first five-and-a-half hours. “Isn’t that kind of insane?”

Mewgenics is also sitting at more than 63,000 concurrent players on Steam at time of writing, creeping steadily towards Rebirth’s all-time peak of 70,701. “We knew the game was good and would do good,” Glaiel says, “but Isaac is *HUGE* so we thought it was unlikely to beat that.” There are also almost 85k people watching it on Twitch – one of which is McMillen himself, who says he’s enjoying watching Northernlion be so immediately good at it.

The critical reception for Mewgenics has been glowing as well, currently sitting at an 89 on sites like Metacritic and 96% positive user reviews on Steam (with roughly 1,700 in at the moment). IGN’s own Mewgenics review gave it a 9/10, saying it’s “a fantastic tactical RPG that’s good for more than a hundred hours of roguelike runs. Just when you think you have it figured out it’ll throw something completely unexpected and hilariously gross at you – and probably a catchy new original song, too.”

Tom Marks is IGN’s Associate Reviews Director. He loves puzzles, platformers, puzzle-platformers, and lots more.