Mewgenics has already bested Binding of Isaac: Rebirth’s concurrent-player record, just over 24 hours since release. This means, at least by one metric, it is co-developer Edmund McMillan’s most successful release yet.
As of 1:30 ET on Wednesday February 11, Mewgenics has an all-time best concurrent-player count of 74,176, which is 4,000 players above Binding of Isaac: Rebirth’s record of 70,701. Mewgenics is also leagues above most of McMillan’s other releases, in term of concurrent player count. The original Binding of Isaac has a peak of 12,575 players, while Super Meat Boy has a high of 5,153. Mewgenics already made back its budget just 180 minutes after release.
Mewgenics is a collaboration between Super Meat Boy and Binding of Isaac dev Edmund McMillan and Bombernaut developer Tyler Glaiel. It is a roguelike-tactics game where you command a platoon of cats through three torturous acts. Any kittens who survive the onslaught become the parents to a new generation of feline warriors. The game won big praise from reviewer Jason Rodriguez, who said in GameSpot’s 9/10 Mewgenics review, “Although it can easily overwhelm you with a high degree of complexity early on, this gradually gives way to an appreciation for the many strategic layers cleverly constructed amongst the chaos.”
If you are one of the players heading into the feline mines, check out the Mewgenics guide hub for tips on how to best its tactical challenges. If you are awaiting a console release, McMillan has promised that ports will arrive later in 2026.