The Company of Heroes games are not the only titles on sale this weekend on the Steam PC game download service. Gamers can also check out the indie game Altitude with a nice price cut as well as a chance to play the full game for the price of, well, nothing.

Yep, the 2D cartoony-style aerial combat title from developer Nimbly Games is on sale from now until Monday for a mere $4.99, a big 50 percent price cut from its normal price. But if you don't want to spend those few dollars on an impulse purchase, fear not. You can also download and play the full version of the game for free until Sunday.