Credits:
Peter Smith

Engine:
Jacob Seidelin
raycasting tutorial

Graphics:
Joe Giuere

Other Graphics: Daniel Armstrong (AKA HughSpectrum)
cemkalyoncu
Along with my name, include the following individuals as well. cc-by metal texture by p0ss (modified): http://opengameart.org/node/9066 cc-0 chain texture by Tapio: http://opengameart.org/content/tiling-chain-texture cc-0 wood texture by Yughues http://opengameart.org/content/tilling-textures-pack-30
Clint Bellanger
more sprites
Some sounds are from OpenGameArt.org