Sanctum

Sanctum is a first-person shooter tower defense strategy video game developed by independent developer Coffee Stain Studios. In this game, you will assume the role of of Skye, an elite soldier sent out to save her home town, Elysion One, from hordes of mysterious alien forces. As the game boasts of not being the your average tower defense game, Sanctum will definitely test not only your building skills, but also your shooting skills as the game also employs an FPS type of gameplay. In order to succeed with your mission, you have to be able to construct and upgrade structures that you can use to defend yourself. Aside from that, you have to effectively use your weapons in order to fight your adversaries. The game features 87 achievements which you can unlock as well as a 4 player co-op action mode. The smooth Customization System also gives you the freedom to control it all. Planning gets you ahead, but making choices in the heat of the moment is just as important. Sanctum will definitely give you hours of fun complete with well-designed maps and an interesting story.