@Malice: well it's 2d only, which means you can't really combine it with 3d rendering (if that's what you meant)

and yeah, 2d collisions aren't that hard to do, but I have zero knowledge in this field so it's gonna be a lot of trial and error.

it's gonna need a somewhat sophisticated approach, though. simple bruteforce methods (checking all objects for collisions) get extremely slow as the number of objects in the scene increases.