Random Scattering

This describes techniques to procedurally scatter some kind of object. This problem isn't unique to roguelikes but it could probably be helpful in certain cases.

Random Scattering: Creating Realistic Landscapes

Making Of Dwarf Fotress

This is a genuinely interesting read. It also provides some insight into the world creation of Dwarf Fortress.

Making Of Dwarf Fortress

Basic Dungeon Generation

An excellent method for creating a simple dungeon using a BSP tree.

Basic Dungeon Generation

Gerry Quinn Dungeons

These are some dungeon maps done by Gerry Quinn. They are just screenshots, but can serve as some excellent inspiration for dungeon building.

Maze of Madness 1
Maze of Madness 2
Maze of Madness 3

I located the source!

Maze of Madness Source

Dwarf Fortress

This is the main page for Dwarf Fortress. The most interesting things that are development related are the feature list, and the screenshots. There might also be some other interesting information if you dig into the forums.

Dwarf Fortress

JADE Design Thoughts

These are several short articles by Thomas Biskup. They are in regards to some of his design decisions on JADE.

JADE Design Thoughts

JADE JavaDoc

This is the JavaDoc export from JADE, which is Thomas Biskup's (creator of ADOM) next game. It's a straight JavaDoc export, but is useful to see how his new project is lain out.

JADE JavaDoc