The state of #insecurity of #proprietary #games is somewhat complicated to come-up with a good answer to.
Most engines used for games elide any notion of memory safety, so that's already a bad start.
Most OSes they run on provide far too much #AmbientAuthority as well.
Virtualization might be an idea but unfortunately #GPU #security with passthrough is problematic https://news.ycombinator.com/item?id=26380051 .
That leaves #paravirtualization, which is complex and so that's another problem.
Shit's fucked yo.