I'm a game design student currently in uni. Developed one okay game on the Play Store so far (called Colour Sync). Working on a management sim game similar to Pocket Planes/Trains in Unity. Need to find an artist who can do pixel art better than I can (a pretty low bar). I can't pay anyone now, but hopefully the game will be successful and an income can be made there. Time commitment isn't super important, so long as stuff gets done when you're not busy and feel so inclined.
If you're interested, hit me up and I can provide more details on the game, hopefully we can work something out.