PC (Microsoft Windows)April 15, 2011
Released ✓ 
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Sanctum
An inventive tower defense/ first person shooter hybrid that pits elite soldier Skye against various forms of alien life on a small set of unique maps. Skye must build and upgrade defensive structures while jumping into the fray to help her creations take down the hostile invaders.
ActionScience fictionIndieShooterStrategy
Game modes
Co-operativeMultiplayerSingle player
Player perspectives
First person