Non Existing Video Games You Would Love To Have

[Sunlight]

Yeah, too bad Bethesda hadn't really perfected their 3rd person camera yet, though. I mean most people just use it to look at their character while walking.
Anyways, I would like to see an fps-creator game, not as an actual game making program that would be used to publish games, but more like a highly customizable shooter. Preferably with a "game" creator so that you could share multiple custom levels tied together into one "game" with friends. But now I'm really just thinking out loud...