This is the Idea Incubator. Below, you can post partial game ideas that aren't big enough for a game by itself. Overall raw concepts, character ideas, weapon opportunities, gameplay features, etc. are all welcome. Just post the idea in a Level 3 header ("===" in code view) under the associated section, and sign with a "~~~".
To regular visitors to this page, you can browse other users' ideas and either suggest expansions, or take inspiration from them. In addition, you can go to the user's message wall, and see if they would like to do a collaboration.