Teeqoz on 30 March 2016
Only PC exclusives, or can I reccomend Portal 2?
Also, Sanctum 2. It's also a multiplat, but chances are you never played it on consoles, and it's better on PC either way. It's a FPS/tower defense hybrid (I know, it sounds a bit crazy, but holy shit is it awesome. I've put ~150 hours into it). I'll link to a vid showing some gameplay so you'll get the idea
https://www.youtube.com/watch?v=IbUkZM7UM2Y
(Actually just watch that review, it explains it pretty well and it does a good job of showing off the gameplay. Also it's only 5 mins).
