Following its recent "mann-conomy" update, Valve has cut 50% off Team Fortress 2's usual $20 asking price. Players can now purchase new hats, weapon skins, and community-made content with real money. Meanwhile, Impulse offers 50% off The Settlers 7, and if you spend $49.95 at Direct2Drive, the store will chop $10 off your next purchase. Microsoft is selling Red Faction: Guerrilla for $9.99 through Wednesday, and GOG is serving up nearly a dozen community favorites for half off.

Steam
Team Fortress 2 $9.99 (50% off)
Everyday Genius: SquareLogic $2.50 (75% off)

More game deals after the jump
Impulse
The Settlers 7: Paths to a Kingdom $24.99
Supreme Commander Gold Edition $14.99
Storm Over the Pacific $34.99
Mr. Robot $9.95
Fallen Earth $14.99
50% off all Unreal titles

Direct2Drive
Spend $49.95 and save $10 on your next purchase

Games for Windows
Red Faction: Guerilla $9.99 (50% off)

Good Old Games
50% off community favorites, including Duke Nukem 3D and Psychonauts