Through a little research, I believe RT is the only RPG currently, which is unfortunate because I think it’s a great way to soak up the setting. I have my eye on Mechanicus, because it looks very XCOM influenced. I like the smaller-scale squad-based tactics much more than the army-scale grand strategy/RTS style. Any other suggestions? I know because of what the original game is, the RTS ones are probably going to be the majority of the PC titles, but there seems to be some representation in just about any genre. I even saw an Ork dogfighting (planes) game.

Mechanicus is a great tactics game with a BALLER soundtrack I haven’t gotten to play Deff Skwadron but Shootas Blood and Teef is a real fun sidescrolling shooter, I should revisit it Space Marine 1 and 2 are both great, 2 has a solid community and frequent updates Boltgun is honestly one of the better DOOMclones ive played, up there with Project Warlock I feel like im forgetting some (ignoring RTS per OP), will edit if I remember

The Dawn of War series. Particularly 2 and its dlc.