PSY・S;181410340 said:wasn't walking simulator coined as a derogatory term against adventure games like this? to create a mock category of "non-games"?
Yup, started out as a dig. Then it took on a life of its own, like Jake said.
People use it as a term of endearment now, as the sub-genre has gotten a lot of respect with the help of Gone Home, Stanley Parable, Ethan Carter, Eidolon, etc.
Sometimes you just have to embrace the insanity.
For example, I've taken to calling my favorite genre Mundane Vehicle Simulators. Stuff like Euro Truck Simulator, Farming Simulator, Train Simulator, etc. The sub-genre gets little respect, but much like Walking Simulators, it's getting better thanks to some crossover appeal titles like ETS2 & FS13/15.