Once a slave, always a slave. Running an explicitly anti-user proprietary kernel module that does god-knows-what is not something I'd ever be willing to do, games be damned. It might just inject exploits into all of your binaries and you'd be none the wiser. Since it wouldn't work on VMs you'd have to use a dedicated physical machine for it. Seems to high of a price to play just a few games.

What if the kernel module is only run in a separate VM than your main one?