Over at chirine's workbench chirine ba kal aka Jeff Berry hangs out and writes wonderful essays. This series from back in 2014 concerns The Braunsteins. The Braunsteins were run by David Wesely and when he went overseas in the military Dave Arneson took them over and continued to run them. They were one of the inspirations for his game Blackmoor which became Dungeons & Dragons after Dave Arneson showed his game to Gary Gygax and Rob Kuntz and group. Gygax wrote it down and did the heavy lifting to get it published.
Here is some information about how to do a Braunstein.
Essay On The Braunstein - Part The First, For July 15th, 2014 - Art or Science?
Essay On The Braunstein - Part The Second, For July 17th, 2014 - Science Or Screenplay?
Essay On The Braunstein - Part The Third - July 19th, 2014 - Rulers, Numbers, And Crunching
More On The Braunstein - Questions From The Floor! - July 21st, 2014
Essay On The Braunstein - Part The Fourth - July 28th, 2014 (Game Aids - 1)
On The Braunstein - A Pause For Questions...
The Braunstein - More Of Your Questions!
The Braunstein - A Question From Ed
A Braunstein Interlude - Maps And Campaigns