Red Army White Guards is a set of free wargames rules for playing battles set in the Russian Civil War. Its played on an offset grid and is apparently designed for 15mm figures; the rules call for three figures on a 30×30 mm base.
Russian Civil War
Dave Waxtel Russian Civil War Rules
Dave Waxtel offers a set of Russian Civil War rules designed for 25mm 28mm games. The rules are very interesting in that they not only have the usual rules for force composition, maneuver and combat, but also provisions for pre game “political maneuvering”. There’s also information on the various forces. I’ve always wanted to do Russian Civil War games, and this one looks pretty good for such adventures.