ah, when you are new to chip music Aka VIDEOGAMES MUSIC the allure of having your song in a game seems to override any common sense.
take heed ! an0va and chunter are clever guys!
also i think you will find that:
if the game is unsuccessful or particularly amateur or even never gets finished (one of these is usually the case with people posting publically looking for game music on a forum) you are quite likely to get no satisfaction from your music being used in the game (or not being used in the game because the game), so if you didn't even sort out a good contract with regard to being paid, you will feel pretty shit. quite often indie developers like to refuse to pay you because either they know their game is worthless, or because they don't like some tiny aspect of the music (edit: indie devs will never tell you what kind of music/sound they want until after you have already written all of the songs, and then they will suddenly become incredibly specific about it) and they like to micromanage everyone. if you've already written the songs this is pretty disheartening. don't let this happen to you
on the other hand, if the game becomes the next minecraft and you agreed a crap contract because you were desperate to get your songs into a game / get exposure, yes, your songs will be in a game / you will get exposure. but you will feel crap anyway because the game sells thousands of units and you don't see a penny in royalties. so don't let this happen to you
the first scenario is much more likely to happen than the second. don't agree to an unfair contract to indie developers in the hope you can piggyback them to success, because they are probably never going to get successful and they are probably going to use their lack of success as justification to screw you over.
i would also recommend never doing spec work / "competitions" unless you really feel that you can win the "competition" with not very much effort at all
and of course it's up to you if you are that desperate to Be A Video Game Soundtracker, but writing a 10 minute song for the vague chance of $100 doesn't make you the next virt or whatever