Panzer Gruppe is a set of free wargames rules for corps/army sized battles in World War II.
rules
RKAA Brigade Commander Rules
RKAA Brigade Commander is a set of free wargames rules for brigade sized encounters in World War II on the Eastern Front.
CUADRO GOLPEANDO! Spanish Civil War Rules
CUADRO GOLPEANDO! is a variant of Peter Pig’s Square Bashing rules for the Spanish Civil War
The Fantasy Trip Third Dimension
The Fantasy Trip Third Dimension is a set of rules modifications for The Fantasy Trip / Melee / Wizard that allows you to use Heroscape sets instead of cardboard counters. The three dimensions create some issues, but these solve them. You’ll need The Fantasy Trip to play, but if you don’t have a copy, you can make do with Legends, which is free from Dark City Games.
Melee and Wizard: The Fantasy Trip Mass Combat Rules
Melee and Wizard is a set of rules modifications to allow you to use The Fantasy Trip / Melee / Wizard for mass combat.