The engine stub has been created and minimal file parsing has been added, more specifically: the engine can now load and parse the graphics.dat file and decompress the images contained into bitmaps on demand, other than that not much more, but at least it’s something visual. Also related to files, uncompressing the Dungeon.dat is now possible, but it’s contents have not been used up yet. You can check the commits on github if you like, feel free to comment, give feedback ^^. The author (as mentioned in the comments, not the original author), who graciously gave his sources to be worked from, has a handy blog in which describes the file structures and algorithms used on them in detail. That and my mentors’ help has been the source of progress.
Link to the github repo:
https://github.com/WinterGrascph/scummvm/tree/dungeonmaster/engines/dm