I've got a good idea of a game from a game I'm playing since I was a kid. It is player-to-player game and is pretty entertaining. This game is pretty much nerve-wrecking. And you need guts to win.
I'm a web developer and needs a sponsor to develop this game or just get the game idea. I'd like to play this myself.
Why not copyright your concept first for a cheap price. Once this is done, no one can steal your idea.
You can then make a proto type or an algorithm for how the game will be done.
Then code it.
Then release it.
Simple, cannot see why a sponsor would really be necessary.