Revision is a Demo party which takes place from March 29th until April 1st 2013 in Saarbrücken, Germany. The competitions are: PC, Amiga AGA/ECS, C64, VIC20, Atari XL, Atari ST, NES, SNES, Master System, Mega Drive, ZX Spectrum etc. Other categories are: Music, Graphics, Web browser, Game, Animation/Video, Wild and ASCII/ANSI.