Setting aside the fact that Space Marshals is a port, the whole cowboys in space thing has been done before. Joss Whedon's Firefly has thirteen episodes and a movie exploring the concept. Cowboys & Aliens let Daniel Craig and Harrison Ford have a crack at it not too long ago. Before that, Clint Eastwood and Tommy Lee Jones gave it a shot in, yes, Space Cowboys.

But in a sea of generic sci-fi shooters, capping aliens in the desert while wearing a 10-gallon hat can feel somewhat refreshing. Besides, Pixelbite's Space Marshals doesn't just mix and match genres. The shooter combines twin-stick controls with tactical strategy.

Space Marshals is not just about shooting aliens. You need to take cover, acquire gear, choose the right weapons, and know which tools are best for what situations. You can go in with guns blazing, or you can rely on a silencer to sneak through levels. Yet while certain aspects may sound similar to X-Com, this is not a turn-based affair.

Space Marshals costs $4.99 and doesn't contain in-app purchases (Yeehaw!). The game runs on modern phones and tablets, but it is optimized for NVIDIA Shield devices. Gamepads are also supported.