Diablo 3,Starcraft, Battleblock, Terraria, Tomb Raider, Skyrim, Portal, Mount and Blade, Magicka, etc. There are a lot of action based games that arent FPS, just browse steam.
Dark Souls 1 and 2. The Elder Scrolls:Skyrim/Oblivion/Morrowind. The Witcher 1 and 2. Alice: Madness Returns. Dragon Age Origins (the second dragon age is just OK). The Mass Effect Series is incredible, it's a third person shooter but the experience of that trilogy is something you don't want to miss. Also, The Dead Space Trilogy is along the same lines it's a 3rd person horror shooter and the first one is by far one of the best games I've ever played. The Second is good but not great and the third one steps it up a lot but also has some co-op mission in it. Have fun!!
Skyrim, sleeping dogs, Witcher 2, assassin's creed, GTA and Mirror's Edge. These are the games I am playing during my FPS slump.