GamersGate has Orcs Must Die! Game of The Year (PC) for $3.24 downloaded. Play as a powerful War Mage with dozens of weapons, spells and traps to dispose of Orcs as you please. Includes Orcs Must Die!, Artifacts of Power DLC and Lost Adventures DLC. The non-GOTY version is $2.50 downloaded.
Orcs Must Die 2 for $3.74 downloaded