At a glance
Stardew Valley has a Mac version: Steam sells it for macOS. Install it in Steam for Mac; it doesn’t need Uncork.
Stardew Valley came out on Steam on 26 February 2016, made by ConcernedApe.
What your Mac needs
Minimum macOS in the Steam requirements: 10.10.
Steam requirements list at least 2 GB of memory for Stardew Valley.
Allow about 0.5 GB of disk space for the Mac version.
How to play
Open Steam for Mac and install Stardew Valley 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 Stardew Valley from there (0.5 GB). We have not tested it ourselves.
The Windows version through Uncork needs a Mac with Apple Silicon (M1 or newer).
Stardew Valley uses DirectX 10: Uncork renders it with D3DMetal.