I've been involved in roleplaying and other games for about 22 years now. I play, GM and write them.

Comercial games I've been part of the production and/or writing of:

• Den of Thieves and Rival Den of Thieves card games -- I wrote 'em, and they are available now, from Rogue Publishing.
• Occultism Magic System for Fudge Magical Medley, co-authored with Sharon Tripp. More about Magical Medley and the systems it explores at http://fudgerpg.com/fudge/medley.html
• Gatecrasher rpg. Not my genre of choice, but I helped fix the magic system. More about Gatecrasher at http://www.fudgerpg.com/gtcrasher/
• Moon Dragon miniature 3d dogfighting space combat game by New Dimension Games. I playtested on this one. I playtest a lot of games -- I enjoyed this one enough that I thought I'd make mention of it even though it's out of print (for now).

Complete rules for some great roleplaying games (complete, no special rules or components to buy)

• GRAPE: Generic Roleplaying All Purpose Engine, by Scott Gray (any genre).
• FUDGE, by Steffan O'Sullivan (any genre).
• SLUG, by Steffan O'Sullivan (any genre).
• The Drones, by Ian Crowther, Sheila Thomas and Victoria Uren (P. G. Wodehouse's Gentry).
• Wuthering Heights, by Philippe Tromeur (Emily Bronte's Gentry).
• Angel/Demon: The Rapture, an rpg, using White Wolf's Storyteller system, by Christopher Blankley (modern supernatural genre).
• Psychosis, by Chameleon Eclectic (madness genre).

Non roleplaying games (complete, no special rules or components to buy)

• Dictionary, a game we used to play in my family.
• The Game of Questions (from Rosencrantz and Guildenstern are Dead), by Tom Stoppard and transcribed by Scott Gray
• NOMIC, a self-modifying game by Peter Suber, popularized by Douglas Hoffstadter, HTMLized by Mark Gritter.
• Werewolf, a game of angry villagers and hungry werewolves

Gaming tools

• You can help your poker game with my Perl Card Counter
• You can figure out what those target numbers mean with my Perl Dice Pool Calculator
• You can figure out what those target numbers mean with my Perl Shadowrun Dice Pool Calculator
• You can work out when to use Power Attack in D&D 3.5 Perl Power Attack Calculator

Tabletop Warfare

• I field Ork Freebooterz (and have some photos of my conversion jobs) in Warhammer 40K
• I field Rangers in The Lord of the Rings Strategy Battle Game

Live Action Games

• Dominion Long rules for a boffer live action campaign game.
• Subterranean Homesick Games Producing Live Action Games.

Campaign Settings

• A few stand-alone sessions about a year Fitchburg Regional, a Collectors roleplaying campaign.
• Ran 4.5 years -- died after players moved Warhammer Enemy Within & The Mootland Adventures, fantasy roleplay based upon commercial gaming products from Hogshead in world of unspeakable horror and halflings.
• Ran 3.5 years -- ended at a planned conclusion The Romany Tales WFRP game about 100 years in the future of my last WFRP game. Only this time, we use 2nd edition, and the characters are a band of Romany peddlars in an Empire with heavy racial laws and prejudice against the Romany people.
• Ran 1.5 years -- ended at a planned conclusion The World Without Shrimp Buffy game, set in the 1850s Cleveland.
• Running now The Wibbly Wobbly game, a space opera set across time and space.

Gaming addenda (for commercial games)

• Some addenda to the 'occultism' magic system for FUDGE, written by by Sharon Tripp and Scott Gray.