Catalyst is a series of fantasy role-playing game supplements created by Flying Buffalo as a series of game aides that could be used with any medieval fantasy-themed role-playing game system. The first supplement, Grimtooth's Traps, was released in 1981. Numerous other Catalyst books were produced, including the Citybook series, seven Traps books, Treasure Vault, and the Lejentia campaign setting. The latest, City of the Gods Map Pack was produced in 2011.
Citybook I was the 1982 winner of the HG Wells Best Role Playing Adventure in 1982. Other Catalyst books have been nominees for the same award in later years.
Major contributors to the Catalyst books include Michael A. Stackpole, Liz Danforth, Steve Crompton, Ken St. Andre, Jennell Jaquays, Deb Wykle (a.k.a. Debora Kerr and Wynn Mercere), Rick Loomis, Larry DiTillio, and Bear Peters, along with many others.
Titles
Grimtooth's Traps
Grimtooth's Traps Too
Grimtooth's Traps Fore
Grimtooth's Traps Ate
Grimtooth's Traps Lite
Grimtooth's Traps Bazarr
Grimtooth's Dungeon of Doom
The Wurst of Grimtooth's Traps (Published by Necromancer Games)
Grimtooth's Ultimate Traps Collection (Published by Goodman Games)
Citybook I: Butcher, Baker, Candlestick Maker
Citybook II: Port O' Call
Citybook III: Deadly Nightside
Citybook IV: On the Road
Citybook V: Sideshow
Citybook VI: Up Town
Citybook VII: King's River Bridge
MAPS 1: Cities
MAPS 2: Places of Legend
City of the Gods: Forgotten Map Pack
Lejentia Campaigns Book 1: Skully's Harbor
Lejentia Campaigns Book 2: Fort Bevits
Lejentia Adventure Pack
Treasure Vault
Wilderness Encounters