One of my favourite games,
STALKER: Shadow of Chernobyl is on sale on steam - 75 off!
It's one of few games I'd recommend playing with a mod for the first play -
Stalker Complete improves and visually upgrades the game, but stays true to the original experiance and
Oblivion Lost is great for the second/third/nth playthrough (massive overhaul).
What's everyone playing?