Steam tells you the space requirement for games in the specs for VR games:
Just to clarify, roomscale doesn't mean you have to move around the room to play a game. Roomscale means that the game is built to accomodate the
ability to walk around the room into the design consideration. Example, things like the game being able to compensate if a player physically walks through a wall in game, as that's something the game only has to account for if the game supports "room scale."
Room scale simply means that you are allowed to walk around the room during the game, not that you
need to walk around the room during a game. Room scale is when tracking will watch and account for you wherever you are in your room. The bigger your room is, the more you can walk. The smaller your room is, the less you can walk. Room scale shrinks and grows depending on how big your room is.
If a game actually
requires you walk around the room to play, it will list outright the dimensions of the playspace required. Usually something like "requires 5'x5' space" in the specs.
Very, very few games are like that.
