You have crash-landed on planet Notrium. Your food supplies are running low, a pack of predatory aliens have got your scent. There are no more bullets for your pistol, your only weapon a handful of rocks. The night is coming, and you are desperately looking for wood to make a fire. Notrium is a game of survival.
A lot of fun.
Tons of weapons, free form gameplay, lots of things to discover.
Probably the best free game out there and it even runs on my crappy old laptop!
Give it a shot.