I have been experimenting with level design for over a decade now. Most of my projects are in improving gameplay and flow, and studying the psychology of flow. Risk/reward patterns, geometry, economy, and game theory are just a few of the things that float my boat. Currently I am working on a new project that I hope will allow me to explore many of the things that weren't sufficiently explored in my pet engine's flagship title.
For people and teams developing mods and games with Valve's Source engine.
The group for gamers dedicated to Linux. No matter if game developers or game players all are welcome interested in Linux as a gaming platform.