Normal Map for the black tiled walls: https://www.filterforge.com/filters/243-normal.html
The normal map was made by the people who worked for filter forge.
Background Music: http://www.freesound.org/people/AniCator/sounds/100482/
AniCator, 2nd July 2010, Science fiction ambient humming sound. Loops seamlessly.
Achievement Sound: http://www.freesound.org/people/loofa/sounds/23847/
Loofa, 18th October 2006, A friend’s analog synth drum, some sweeps, some kicks, some bass…