At a glance
Undertale has a Mac version: Steam sells it for macOS. Install it in Steam for Mac; it doesn’t need Uncork. Player reports say the Windows version starts too.
Steamstore
from 2 GBmemory
0.2 GBdisk space
single playermodes
Undertale came out on Steam on 15 September 2015, made by tobyfox.
What your Mac needs
Steam requirements list at least 2 GB of memory for Undertale; 4 GB recommended.
Allow about 0.2 GB of disk space for the Mac version.
How to play
Open Steam for Mac and install Undertale 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 Undertale from there (0.2 GB). We have not tested it ourselves.
The Windows version through Uncork needs a Mac with Apple Silicon (M1 or newer).
Player reports say the Windows version starts:
| Date | Mac | macOS | Rating | Played |
|---|---|---|---|---|
| 24 Sep 2026 | M5 Pro | 26.3.1 | 5 / 5 | 4 min |