WAll the Worlds' Monsters is a series of fantasy role-playing game supplements published by Chaosium from 1977 to 1980. They were republished in PDF format in 2016.
WArkham Horror is a cooperative adventure board game designed by Richard Launius, originally published in 1987 by Chaosium. The game is based on Chaosium's roleplaying game Call of Cthulhu, which is set in the Cthulhu mythos of H.P. Lovecraft and other horror writers. The game's second edition was released by Fantasy Flight Games in 2005, with a third edition in 2018.
WBasic Role-Playing (BRP) is a tabletop role-playing game which originated in the RuneQuest fantasy role-playing game. The BRP standalone booklet was first released in 1980 in the boxed set release of the second edition of RuneQuest. Greg Stafford and Lynn Willis are credited as the authors. A percentile skill-based system, BRP was used as the basis for most of the games published by Chaosium, including Call of Cthulhu, Stormbringer, and Elfquest.
WCredo is a strategy card game for 2–5 player designed by Chris V. Gidlow, and first published by Chaosium in 1993.
WCthulhu for President is a political parody of the United States presidential election, in which Cthulhu, the fictional cosmic horror, runs for President of the United States. Parody campaigns with accompanying political advertising materials were run for each of the US presidential elections since 1996, usually with the motto "Cthulhu for President: Why settle for the lesser evil?" Similar parody campaigns have been run for presidencies of other countries.
WDragon Lords of Melniboné is a role-playing game published by Chaosium in 2001.
WElfquest is a tabletop role-playing game published by Chaosium in 1984. Based on Wendy and Richard Pini's Elfquest series of comics, this Basic Role-Playing game was written by Steve Perrin, Sandy Petersen, and Yurek Chodak.
WElric: Battle at the End of Time is a board wargame published by Chaosium in 1982, an update of the 1977 game simply titled Elric. It is based on the Elric of Melniboné books by Michael Moorcock. There have been three english language editions, Elric (1977), Elric: Battle at the End of Time (1982), and Elric (1984), published by Avalon Hill.
WHawkmoon is a Science fantasy tabletop role-playing game, designed by Kerie Campbell-Robson and published by Chaosium in 1986. Campbell-Robson's adaptation of Michael Moorcock's The History of the Runestaff novels, was published when she was twenty, and one of the first women lead designers in the industry.
WHeroQuest is a role-playing game written by Robin D. Laws first published as Hero Wars by Issaries, Inc. in 2000. It has its roots in Greg Stafford's fantasy world of Glorantha, but was designed as a generic system, suitable for, but not tied to any particular genre.
WKing Arthur's Knights is a 1978 Arthurian board game, designed by Greg Stafford, and published by Chaosium.
WLords of the Middle Sea is a 1978 board wargame published by Chaosium. Designed by Lynn Willis, with art by William Church and Gene Day.
WMythos is an out-of-print collectible card game published by Chaosium. It is based on the Cthulhu Mythos stories of the horror author H. P. Lovecraft, as well as on Chaosium's own Call of Cthulhu role-playing game.
WNomad Gods is a fantasy wargame designed by Greg Stafford, and published by Chaosium in 1977. A French-language edition was published by Oriflam under license from Chaosium under the name Les Dieux Nomades in 1994. A free version for online play without the rulebook was released for the Vassal Engine in 2012. Chaosium republished the rulebook in PDF format in 2017.
WPanzer Pranks, WWII as it actually was in the movies is a 1980 board wargame published by Chaosium.
WPendragon, or King Arthur Pendragon, is a Tabletop role-playing game (RPG) in which players take the role of knights performing chivalric deeds in the tradition of Arthurian legend. It was originally written by Greg Stafford and published by Chaosium, then was acquired by Green Knight Publishing, who in turn passed on the rights to White Wolf Publishing in 2004. White Wolf sold the game to Stewart Wieck in 2009. Wieck formed Nocturnal Media, who updated and reissued the 5th edition originally published by White Wolf. In 2018, it returned to Chaosium.
WPrince Valiant: The Story-Telling Game is the official role-playing game based on Hal Foster's comic strip of the same name. Created by Greg Stafford the game was first published by Stafford's company, Chaosium, in 1989. A second edition has followed in 2018.
WThe Ringworld science fiction role-playing game was published by Chaosium in 1984, using the Basic Role-Playing system for its rules and Larry Niven's Ringworld novels as a setting.
WRuneQuest is a fantasy tabletop role-playing game originally designed by Steve Perrin, Ray Turney, Steve Henderson, and Warren James, and set in Greg Stafford's mythical world of Glorantha. It was first published in 1978 by The Chaosium. Beginning in 1984, its publication passed between a number of companies; Avalon Hill, Mongoose Publishing, The Design Mechanism, finally returning to Chaosium in 2016. RuneQuest is notable for its system, designed around percentile dice and with an early implementation of skill rules, which became the basis of numerous other games. There have been several editions of the game.
WThe Sea Elves is the final supplement for the fantasy role-playing game Elfquest, published by Chaosium in 1985.
WStomp! is a 1978 board wargame, written by Tadashi Ehara, illustrated by Eric Vogt, William Church, and Drashi Khendup, and published by Chaosium.
WStormbringer was a fantasy tabletop role-playing game published under license by Chaosium. Based on the Elric of Melniboné books by Michael Moorcock, the game takes its name from Elric's sword, Stormbringer. The rules are based on Chaosium's percentile-dice-based Basic Role-Playing system.
WThieves' World is a role-playing game supplement published by Chaosium in 1981, based on the Thieves' World series of novels. It was notable for including rules and statistics allowing for its use with nine different fantasy and science-fiction RPG gaming systems.
WWhite Bear and Red Moon is a fantasy board wargame set in the world of Glorantha, created by Greg Stafford and published in 1975. Stafford first tried to sell the game to established publishers, but despite being accepted by three different game companies, each attempt ended in failure; eventually he founded his own game company in 1974, the influential Chaosium, to produce and market the game.