Mewgenics recouped its eight-year development cost roughly three hours after launching on PC on 10 February, developer Tyler Glaiel told IGN in an interview reported by Game Informer. Glaiel described the game's performance as exceeding expectations, saying, "So far, this is beating expectations by quite a lot."
The cat‑breeding roguelike turn‑based strategy RPG sold around 152,000 copies in under six hours, according to figures cited by the developers, and covered its development spending in roughly half that time. The title was created by Glaiel in collaboration with Edmund McMillen of The Binding of Isaac fame.
Concurrent player figures have been strong. At the time of reporting Mewgenics had 63,279 players online, with an all‑time peak concurrent count of 65,962. That peak sits just below The Binding of Isaac: Rebirth's 70,762 peak concurrent players.
McMillen reflected on the scale of the launch, noting his previous day‑one high was far lower: "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," he told IGN.
Glaiel added context on expectations, saying, "We knew the game was good and would do well, but Isaac is huge, so we thought it was unlikely to beat that." Early indications suggest Mewgenics may approach or surpass Rebirth's concurrent peaks over the coming days, when player counts typically rise.
Mewgenics launched on PC on 10 February. Further coverage and impressions are available in Game Informer’s report: Mewgenics made back its 8-year development cost in just 3 hours after launch, which cites the IGN interview with the developers.