Build a Mutant!
Crabby Games.
Studio group
Playing right now
Between 61 and 76 over the last 24 hours.
Power-ups
All-time numbers from the game's Roblox page.
235.3K
Since it opened on 7 Oct 2026.
12.4K
Players who saved it.
55%
99 likes, 80 dislikes.
8
Players per server, one stud each.
Hour by hour
The most players at once in each hour. We started counting on 11 Nov at 18:00 UTC, so this covers the 2 hours since.
Biggest hour so far: 76 players at 19:00 UTC on 11 Nov.
Screens
From the game's store page.
Patch notes
Each publish we saw, and how many players were in the hour before and after.
- 7 Oct 2026Opened
- 4 Nov 2026Last publish
- 11 Nov 2026We started counting
No patches yet. Build a Mutant! hasn't published an update since we started counting on 11 Nov.
About the game
In Crabby Games.'s words.
🧪 Welcome to Build a Mutant!! 🚧 The game is in Beta: so you might run into some bugs!! we update a lot so check back. ❓ How to Play:
- World
- Simulation
- Kind
- Tycoon
Players also jump into
Other Simulation games with the most players right now.
Is Build a Mutant! yours? See inside it, live.
This page is what anyone can see. Studwise for developers shows the rest as it happens: every server and every player, where they quit and how each update landed.