Random catacombs -- maybe
I was just playing around with writing a random catacombs generator (using stochastic L-systems), and happened to get a result which looked half-decent. Then I thought it'd look better on parchment, so I had a go at RobA's parchment tutorial.
If I can manage to get the generator consistently producing good results maybe I'll script the whole thing up in GIMP or something. Until then, here's a preview.
Comments and suggestions appreciated (all it's doing so far is corridors and small rooms).