This website has my roguelike game Downfall and some of my other projects.
Downfall: Downfall was my main project. It's a roguelike with some unusual features, such as a hexagonal dungeon instead of a standard rectangular dungeon. It's still in development, and doesn't have very many features yet. It has several item types, and multiple dungeon branches, which are all configurable.
Hex board game: a simple implementation of the hex board game.
RLLib: a library for creating roguelike games. It's basically a platform-independent terminal, but with extra features. It has easy file access, an RNG, a message-printing system, and more.
RLLib is not updated anymore, but I am working on a new library to replace it. This new library uses SDL and OpenGL instead of unportable system calls, has more features, and is more suited to real-time games, although it can still be used for turn-based games. It is also much faster because it uses OpenGL.
These are some of my old articles.
Hexagonal dungeons: explains why and how to use hexagonal dungeons.
Command-line interfaces and usability.
Captain Forever is one of my favorite games. It is a space shooter where you build a spaceship out of parts from destroyed spaceships. I think the best way to describe it is "lego for spaceships".
Roguelikes are games that are similar to the game Rogue. They are usually ASCII, but some of them have tiles instead, and some (like Downfall) have a combination of the two. You can read more about roguelikes on RogueBasin.