I've written roleplaying games since 2000, and have recently started dabbling with hypertext games and interactive fiction.
My favorite of the games I've written, Owl Hoot Trail uses classic rules (that is, it resembles old school D&D) with a deadly twist to bring a fantasy Wild West to life. Half the book is a damn fine adventure, "They Rode to Perdition," by Kevin Kulp.
Check out a bottle adventure I wrote for OHT: The Box (PDF).
The Shadow of Yesterday is pulpy romantic sword-and-sorcery at the end of one world and the beginning of the next. This game melds the best of standard fantasy role-playing and a hard-charging narrative engine. Set in a post-apocalyptic fantasy world where the creation of a moon has ravaged cultures and thrown the fate of the earth into question, TSOY is like a Weird Tales contribution written by Emily Bronte.
The Princes’ Kingdom is a game in which you and your friends act out the adventures of children in faraway lands. These lands are all across an ancient ocean, and are all ruled by a wise king. You play the king’s children, princes, sent out to explore the kingdom and help out the citizens. The kingdom is very large, made up of hundreds of islands, and so the king sends out his princes to survey it and find out what sort of problems people have across the lands, so that they may one day be wise rulers themselves.
The game is inspired by the critically-acclaimed Dogs in the Vineyard, and has a foreword from Vincent Baker, the author of that game.