In like a biscuit tin.
My.. hmm, 10th time stepping up to the plate. Exciting! Especially as I’d managed to miss the last couple. This should be good 
Code: C
Platforms: Windows, Linux and OSX (hopefully)
Library: A hand-rolled lightweight opengl thing ‘whitgl‘
Art: Gimp
Audio: FLStudio, Audacity, sfxr
Gravity: 9.78 m/s²