Xenowerk, a top-down shooter game, has just dropped down to $0.99. This matches the lowest price it has ever been. The game, created by the same folks who made the highly reviewed game Space Marshals, uses a dual-stick control scheme where one stick controls your character’s movement while the other stick controls where you shoot. Xenowerk is a shooter where you blast your way through an underground laboratory full of mutant creatures. It’s compatible with the 1st and 2nd-gen Fire TV and requires a game controller to play.