Sentry looks like one for fans of Sanctum and Orcs Must Die.
An indie tower defense/shooter hybrid that hit Steam Early Access late last month is getting pretty positive reviews from early players. In Sentry your job is to defend a ship of frozen human survivors fleeing alien attack by setting up a gauntlet of traps, tricks, and environmental hazards between enemy boarders and the energy core of your ship.
Sentry’s also an first-person shooter hybrid, letting you use a variety of guns to blow out enemy weak points, or convenient windows, to defeat the oncoming horde. It’s just singleplayer for now, but Sentry plans to add two player co-op in the future.
