Tournament Joust is a free print and play game with some really good looking jousting mechanics. It has paper knights, but you’ll want to swap in your own miniatures.
rules
Space Battles
Space Battles is a set of free wargame rules designed for HO Scale science fiction miniatures.
19th Century Square Brigadier Rules
Ross McFarlane’s 19th Century Square Brigadier rules are designed for late 19th Century wargames on a square gridded battlefield.
Fighting Fantasy Mass Battle Rules From 1986
Fighting Fantasy Blog has published a set of “Fighting Fantasy Mass Battle” rules from a 1986 issue of Warlock magazine. Ahhh … such Old School Goodness.
Ancient Battlelines Clash Rules
Ancient Battlelines Clash is a set of free wargames rules from Shaun’s Wargaming With Miniatures Blog. Shaun writes:
Ancient Battlelines Clash is the ruleset I have written to be solo friendly, would play in less than 1 hour, preferably 20-30 minutes, on a 2’x2′ table and give a good game with what I want in historical feel.