I'm working on a website where gamers can connect with each other. Let's say one gamer wants to play a match in Halo against another gamer, but none of his friends are available. I want him to be able to hop on to my website, request the game Halo, and see if anybody else wants to play. I've tried just a text chat, but that seems too simple, and anyway, people were just messing about. Is there any software that allows gamers- on my website- to choose a game, either from a dropdown list or by typing a word or two- and see if other gamers have requested the same thing.
Oh, and it has to be embeddable.
UPDATE: Just forgot to mention: Halo is just an example. It should work for either a game from a dropdown list (which should be quite large) or allow the user to input a game themselves.