fix-cz: Combat is similar to real-time combat in Arcanum: Of Steamworks & Magick Obscura (you could switch between turn-based and r-t there if I remember well, but there's only r-t combat in Inquisitor). You have to care about your stamina, when it runs out, you become tired, can't fight or run away and you are pretty much f... ...dead.
Yeah, this is the best comparison, although the combat is better than Arcanum's real-time stuff. In fact, other than the lack of a truly open world to explore, Inquisitor feels very much like Arcanum, minus some of the more "hardcore" RPG trappings (i.e. character system is not as advanced).