I've helped my friends out in making a few games. One such game is from a Gamejam session. It's called Burger Katamari, where you essentially roll around as a hamburger making yourself. It was extremely fun. Since I'm not a programmer by no means, I just used 3dsmax to model and texture some of the items in the game. Another game I've helped to model doesn't have a release date yet and is still under construstion. It's a shooter with a desctuctible map. It's very, very easy to make your own game with some of the technologies out today. Of course if you want a good game with lots of content you're gonna need a team for that lol.