It looks like we don't have to wait for the weekend to get some good PC game sales. The indie-themed game download site Greenhouse has just put three of their titles on sale this week. You can get the just released And Yet It Moves along with Penny Arcade Adventures Episode 1 and Defense Grid: The Awakening for just $9.99 each. That's a 33 percent savings off the first two games and a 50 percent sale for the third. The sale ends on Sunday.

Meanwhile, Steam has given permanent price cuts to two of Dreamcatcher Games' titles. You can now down download and purchase the FPS Painkiller Overdose and the space-based RTS game Genesis Rising for just $4.99 each. Also GamersGate has put the space combat games Tarr Chronicles and Dark Horizon together as a bundle for just $2.99 this week.