Steve Burt has a set of free wargames rules for playing Napoleonics using DBA mechanics.
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Medieval Skirmish Rules
Bob Beattie offers a set of Medieval Skirmish Rules.
The Wheel of Time Miniatures Wargame
The Wheel of Time is an epic fantasy by the late Robert Jordan. Here’s a set of wargames rules based on the series.
Godslayer Quick Start Rules
Godslayer is a set of fantasy skirmish rules with a complete set of miniatures. You can download the starter rules for free at the link.
Relics Fantasy / Steampunk Miniatures Rules
Tor’s game Relics pretty much defies categorization. It’s a fantasy world, with a black-powder/steampunk vibe. Some of the factions look like homicidal dolls, while other resemble the faerie of yore. You can take a look at the rules for free at the link.