Go! Go! Go! is a set of free wargames rules modeled on the computer game Counter Strike.
Exoshift Science Fiction Rules
Exoshift is a set of free wargames rules for mass battle science fiction games.
Dark Ages Campaign
Here’s a reproduction of an article on a Dark Ages Campaign from the Sept. 1990 Wargames Illustrated.
Good Athletic Edition Miniatures Rules
Good Athletic Edition is a set of free wargames rules for recreating Olympic style athletic events. The “Good” system is very interesting, in that characters have only two stats: good and bad.