At a glance
Transformice has a Mac version: Steam sells it for macOS. Install it in Steam for Mac; it doesn’t need Uncork.
Steamstore
from 0.512 GBmemory
0.06 GBdisk space
multiplayermodes
Transformice came out on Steam on 30 January 2015, made by Atelier 801.
What your Mac needs
Minimum macOS in the Steam requirements: 10.6.
Steam requirements list at least 0.512 GB of memory for Transformice.
Allow about 0.06 GB of disk space for the Mac version.
How to play
Open Steam for Mac and install Transformice as usual.
If the Mac version will not start, you can install the Windows version through Uncork: download Uncork, sign in to Steam and install Transformice from there (0.06 GB). We have not tested it ourselves.
The Windows version through Uncork needs a Mac with Apple Silicon (M1 or newer).