How fast did Mewgenics sell on Steam?

A surprise hit from a long development

Mewgenics launched with unusually strong momentum for an indie project. Co‑created by Edmund McMillen and Tyler Glaiel after a protracted development cycle that stretched over many years, the game moved far more units in its opening hours than most small teams expect.

Key launch numbers and milestones:

• The game recouped its development budget in a matter of hours following release.
• Within the first six hours it sold roughly 150,000 copies.
• That early pace accelerated: reports put total sales near a quarter of a million copies inside the first 12 hours.
• Concurrent player figures also surged, with the title eclipsing records set by earlier hits from the same creators.

What it is and why players flocked to it

Mewgenics is a cat‑breeding, tactics‑focused roguelike — a niche blend that nonetheless carried strong appeal because of its pedigree and unusual systems. The pedigree of its developers attracted attention, but the launch success rested on positive player reaction and strong word‑of‑mouth. Review scores and community chatter emphasised the game’s depth and quirky touches, which helped sustain the early sales spike.

What happens next

The studio has indicated additional content is a possibility but said meaningful DLC won’t arrive immediately; the team plans to take time to understand player preferences before expanding the game. For now, the rapid sales have given the developers breathing room to plan post‑launch support and consider console versions down the line.