Third-person Shooter
Third-person shooter is a genre of 3D video games where the camera view is outside and thought of as usually being behind the main player character, its name chosen for the number of third-person video games whose gameplay is derivative of first-person shooters. Because so many games employ third-person cameras, however, and shooting, much confusion exists over what qualifies as a third-person shooter and what doesn't. Games such as Max Payne fit into the former category, embodying gameplay that mostly consists of shooting. A number of shooters, including The Suffering, bridge the gap between first-person shooters and this kind of game by offering either first- or third-person cameras.
The other use of the term third-person shooter is harder to pin down. The Resident Evil series, though it incorporated both third-person gameplay and shooting, was not considered a third-person shooter until Resident Evil 4; because of the emphasis on adventure and survival, this was called survival horror. In contrast, the GTA series from GTA III and up has been labelled by some as a third-person shooter, but combines driving and RPG elements along with elements from the other description.
An alternative phrase for this is a "shoot 'em up", condensed by fans into "shmup".