It's a tournament style game, very strategy oriented, players are rewarded for the style in which they preform E.g player uses the right taunts at the right time, player has conversations with others to make it look like they have become friends or enemies ( sort of the stuff you would expect out of WWE except with guns and alien planets and futuristic settings. Also you and the other competitors are AI robots with human appearance.

You need to develop your idea a bit more before posting and asking for opinions.

- Tournament style (How many players? what scale is this on?)
- Skill Based (combat skill? diplomatic? multiple? Describe!)
- Guns, Alien Planets, and Futuristic Settings (is this in space? if so, what space? Inter-planetary, inter-stellar, inter-galactic? what kind of weapons?)
- Friends and Enemies (How big will the groups be? 2, 10, 50, 1000? Is there any formal system for alliances or just by-word? What benefits come from this?)

Try answering some of these and more, and then have people rate the idea - it always helps to have detail!

I highly recommend you study this game, "neptune's pride", which deals heavily in strategy, but it's real focus is on diplomacy. There is plenty you could learn from this.