

As far as base services go Linux doesn’t really have that many that would be resource hogs.
For giving CPU preference to your game you can use nice
. For keeping pages of memory from being invalidated you could maybe use mlock
but I have no experience with that tool. Unnecessary use of the GPU would probably be the biggest drag. For your distro or desktop environment you should see if it has a “game mode” or any settings you can toggle that normally use the GPU.
Looks cool. Anyone who’s played can say how it differs from X-Com or Shadowrun?