The Old Lords of Wonder and Ruin is a clone of the original rules for medieval miniatures, which looks forward to the 3LBB for rules clarifications and overall compatibility, and can be utilized in "medieval fantasy" TTRPG campaigns of any edition. The Old Lords of Wonder and Ruin pairs notably well with Wight-Box, a 3LBB clone which itself looks back to Chainmail for inspiration.
This work has over doubled in length with the inclusion of the "Fantasy Supplement"! Now when you encounter a group of 200 goblins, you can rally troops from the nearby village and actually fight them!
Fantastic creatures have been minimally updated for compatibility with the 3LBB, but are otherwise of complete accuracy to the original, so now you can benefit from things like the Halfling's amazing bonuses in ranged combat, or the Halfling and Elven abilities to become nearly invisible on the battlefield!
* Combat at Battlefield scale (1":10 yd) and Indoor scale (1":10')
* Optional rules for playing on a hex grid
* Tables for mass ranged combat (archers, arquebusiers, catapults, and cannons)
* Tables for mass melee combat (infantry, cavalry, and morale)
* Playing heroes on the battlefield, and heroic duels
* Tables for man-to-man combat (weapons vs armor)
* Weapon classes (reach, multiple attacks, and parrying)
* Weather and seasons
* Undisciplined peasants
* 16 Historical factions (including Spanish, Vikings, Landsknechte, Knights, Mercenaries, Japanese, and Chinese)
* 10 Fantasy factions (including Bandits, Pirates, Desert Nomads, Dervishes, and Cavemen)
* 26 Fantastic creatures (all of the classics, and not counting the half dozen variants of Dragons, Giants, or * Wizards)
* 18 Spells
* Fantastic combat (and rules for using the more familiar Man to Man combat for heroic characters in RPGs)
* Sieges
* Jousting
For the benefit of those less familiar with wargames, the following articles are included:
* "Wargames and TTRPGs" - on using these wargame rules in tandem with your fantasy TTRPG
* "Braunstein Campaigns" - explaining what they are, and how to create your own
In addition, the entirety of this work has been written by someone who is first and foremost a TTRPG player, not a wargamer. Though you may still have to look up the ocassional odd term (what's "abatis"?), explanations are provided to help others who are novice to wargaming. Examples are included throughout, demonstrating uses of these "wargame" rules with scenarios that come up in typical fantasy TTRPG play.