At a glance
Tabletop Simulator has a Mac version: Steam sells it for macOS. Install it in Steam for Mac; it doesn’t need Uncork.
Tabletop Simulator came out on Steam on 5 June 2015, made by Berserk Games.
What your Mac needs
Minimum macOS in the Steam requirements: 12.
Steam requirements list at least 4 GB of memory for Tabletop Simulator.
Allow about 3 GB of disk space for the Mac version.
How to play
Open Steam for Mac and install Tabletop Simulator 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 Tabletop Simulator from there (3 GB). We have not tested it ourselves.
The Windows version through Uncork needs a Mac with Apple Silicon (M1 or newer).
Tabletop Simulator uses DirectX 10: Uncork renders it with D3DMetal.