The phrase "walking simulator" refers to a type of video game where the main focus is on exploration and taking in the environment, rather than intense action or difficult challenges. Full definition
The first - person walking simulator genre was seen an explosion in popularity this past decade. (heypoorplayer.com)
I like a good walking simulator as much as anyone — in fact, I would say that I like them more than most. (xblafans.com)
However, unlike a good walking simulator, this game doesn't have an engaging story to compensate for the lack of challenge or tactile gameplay. (thegamebolt.com)