I'm currently making tunes using a program called FamiTracker. It emulates the Nintendo Entertainment System's (NES) or Famicom's sound chip.
You can use them in your creations if you want, but you'll have to figure out a way to loop them yourselves if you want to use them for games.
One thing I'll try allowing is this: I'll even let you remix or arrange the original tunes! Just let me know first by sending a message, as I want to be one of the first to hear a remastered tune and actually know it exists.
I'll also take requests. If you have a tune you want to sound 8-Bit, then let me know.
And please, if you're going to rate my stuff terribly (or greatly, for that matter), at least post a review explaining why.
That's it for now.