Perren wrote the original core of Chainmail, the medieval combat system Gary Gygax expanded and published. Chainmail's fantasy rules were the engine Dave Arneson started from in Blackmoor, making Perren one of the unsung grandparents of D&D.
Life
By the late 1960s Jeff Perren was a miniatures wargamer in the circle around Gary Gygax in Lake Geneva, Wisconsin. Hobbyist sources give his birth date as July 25, 1947. He was an early member of the Lake Geneva Tactical Studies Association, the club that met in Gygax's basement from 1970, and later ran a hobby shop. He has kept a low public profile compared with the other founders of the roleplaying hobby, and much of what is known about him comes from fellow gamers' recollections and occasional interviews.
(Some reference lists have given Perren a death year of 2011. Public appeals on his behalf in 2015 and tributes marking his 70th birthday in 2017 show that this is mistaken.)
Work
Perren's great contribution was a short piece of rules writing. In 1970 the Lake Geneva club acquired a set of Elastolin figures, the German plastic medieval soldiers popular with collectors, and Perren drafted four pages of rules for mass medieval combat so the group could play with them. Gygax, an energetic editor and publisher of club newsletters, expanded and revised the text. A version appeared as "Geneva Medieval Miniatures" in Panzerfaust magazine in April 1970, and a revised set as the "LGTSA Miniatures Rules" in The Domesday Book, newsletter of the Castle & Crusade Society, that July. Later issues added man-to-man combat and jousting.
In March 1971 Guidon Games published the whole package as Chainmail, credited to Gygax and Perren. It combined Perren's mass-combat core, Gygax's one-to-one rules and a 14-page Fantasy Supplement that let players field heroes, wizards, elves, orcs and dragons inspired by Tolkien, Robert E. Howard and others. Frank Mentzer, a later TSR designer, has described Perren as the compiler who gathered the club's ideas and shaped them into a coherent set of medieval rules.
Chainmail sold steadily (Guidon reported about a hundred copies a month) and went through a second edition in 1972 and a TSR third edition in 1975. Perren and Gygax also collaborated on Cavaliers and Roundheads, a set of English Civil War rules that in 1973 became the very first product of the new company TSR, Inc..
Legacy
Chainmail's importance is out of all proportion to its size. When Dave Arneson began his Blackmoor campaign in 1971, he started from its fantasy rules before building his own. And when Gygax wrote Dungeons & Dragons in 1973, the new game still referred readers to Chainmail for combat, offering an "alternative" system that soon became standard. The idea that a figure's armor makes it harder to hit, a direct ancestor of Armor Class, and the practice of giving heroes and wizards special powers against lesser troops, both passed through Chainmail.
Perren has said he received no royalties from Chainmail. His memorial in the fiction of D&D is geographic: Perrenland, a northern nation in the World of Greyhawk, bears his name. Detailed histories of the hobby, notably Jon Peterson's Playing at the World (2012), have since restored his place as the first author of the medieval rules on which D&D's combat was built.
Marginalia
- Perren's original medieval rules, written in 1970 for the club's newly bought Elastolin figures, ran to four pages.
- Gygax edited them into "Geneva Medieval Miniatures," printed in Panzerfaust magazine in April 1970, before Guidon Games' Chainmail in March 1971.
- With Gygax he also wrote the English Civil War rules Cavaliers and Roundheads, the first game published by TSR, Inc. in 1973.
- The Greyhawk region of Perrenland is named after him.
- He has said he received no royalties for Chainmail.
Quick answers
- Who is Jeff Perren?
- The Lake Geneva wargamer whose four pages of medieval miniatures rules became Chainmail, the 1971 game whose fantasy supplement was the launching pad for Dungeons & Dragons.
- When was Jeff Perren born?
- Jeff Perren was born in 1947.
- What is Jeff Perren known for?
- Jeff Perren is best known for Chainmail.
- Why does Jeff Perren matter to fantasy and games?
- Perren wrote the original core of Chainmail, the medieval combat system Gary Gygax expanded and published. Chainmail's fantasy rules were the engine Dave Arneson started from in Blackmoor, making Perren one of the unsung grandparents of D&D.


