LordCinnamon: yeah, ok, but by that reasoning 3D games should be 4D games. In gaming terminology, this game is 1D.
Gaming terminology is always kind of odd, because 3D games aren't really 3D at present, they're just a projection of a 3D world onto a 2D surface. Might be interesting to create a game where it's basically a FPS but there's a skill or something which allows you to change the projection so as to allow some, like, badass sniping opportunities.
It's not really a particularly important point, basically the reality we live in is considered to be a non-deterministic one with 3 dimensions of lengths and one of time, which means that there must be a minimum of 5 dimensions out there at any given time. We tend to reduce the 4th and 5th dimensions as much as possible down to a single point so as to grasp what's going on. Hence why people have more and more trouble dealing with things in the future, as they're having to cope with the action in both the 4th and 5th dimensions.