DMExtract is a program allowing you to extract graphics.dat files from Dungeon Master, Chaos Strikes Back and Dungeon Master II, change what you would like and then recompile the graphics.dat file. It is then possible to create custom graphics, sounds, texts, etc…
CSBEdit is a tool to edit some binary items (extracted by DMExtract) found in the graphics.dat files of the Atari ST versions of Dungeon Master and Chaos Strikes Back. It allows viewing and modifying a lot of things like armor and weapon values, attacks, creatures characteristics, etc…