This is a project I did a while ago. It's a random dungeon generator, for either Tunnels & Trolls, or Basic D&D/Labyrinth Lord combined with Mutant Future.
I know there are a lot of random dungeon generators around the web. But this one is a lot more detailed. For example, it doesn't pick monsters from a list: it creates all-new monsters for every dungeon. It also has a lot of features that most generators ignore, such as relations between different groups of monsters, the difficulty of bargaining with them, the availability of hirelings in the area and so on.