[–] waffleman 0 points 1 points (+1|-0) ago 

half life is. and the first Dead Island. half life seems to run better on linux than anything else. in my experience anyway. also, unepic runs well on linux. I'm not a big time gamer but I do enjoy killing zombies sometimes. killing floor also runs on linux. I'm on mint btw so your system may or may not support those.

[–] 10733370 [S] 0 points 3 points (+3|-0) ago 

These do run on Debian okay except for Dead Island, but that's good to know. Some research suggests only a few others:

Portal 2

Dreii

Tooth and Tail

[–] Fambida 0 points 2 points (+2|-0) ago 

If Dead Island runs on Mint you should be able to get it running on Debian, since Mint is built on Ubuntu, which is built on Debian.

I'm not saying it'll be easy, since Mint runs shit out of the box that often will take configuring to run even on *Buntu, but it should work fine once you figure it out.