For those who don't already know, you can get a lot of PC gaming performance out of these machines using Sikarugir. You can install all of Steam via winetricks and go from there, or launch DRM-free games directly.
There has been for a long time. It used to be called Wineskin — Sikarugir is the successor to that project. There's also Porting Kit which helps setting up and installing the wrappers.
Underneath it all is Wine which is the open source compatibility layer project which Crossover contributes to.
https://github.com/Sikarugir-App/Sikarugir