Adventurer Conqueror King System vs The Lost March

Compare Adventurer Conqueror King System and The Lost March side by side. See differences in complexity, dice, genre, and more.

	Adventurer Conqueror King System	The Lost March
Genre	Fantasy	Fantasy
Tags	Crunchy, Sandbox, Domain Management, Character Building, Simulation, Dungeon Crawl, Ascending AC	Classic Fantasy, Sandbox, Exploration, Hexcrawl, Dungeon Crawl, Faction Play, Domain Management, Random Character Creation, Vancian Casting, Inventory Management
Core Mechanic	Roll d20 + modifiers vs. a target value for attack throws, saving throws, and proficiency throws. 18 classes across core (Fighter, Explorer, Thief, Mage, Crusader, Venturer), campaign (Assassin, Barbarian, Bard, Bladedancer, Paladin, Priestess, Shaman, Warlock, Witch), and demi-human archetypes. 110 proficiencies and 378 spells. Characters progress from adventurers to domain rulers with integrated systems for strongholds, realms, mercantile ventures, criminal syndicates, armies, pitched battles, and sieges.	A skill check rolls a pool of d6s equal to the skill level: one to five dice, plus a die for some class bonuses. Normally a 6 is a success and a 5 is a partial success. An Ability adjustment either widens the success range or adds a critical-failure range on the lowest faces. Settlement, wilderness and combat checks are opposed by the referee's dice, where equal results cancel and a partial success downgrades a full one. In combat, successes and partial successes are assigned to attack or defend. A hit deals the weapon's maximum damage on a success or its minimum on a partial success.
Dice	d20	d6 dice pool
Complexity	High	Low
Availability	Paid	Free core rules
Runnability	4 of 5 book tools	4 of 5 book tools
License	All Rights Reserved	Proprietary
Third-Party Publishing	Not yet researched	No verified route found
Summary only, not legal advice. Check current terms before publishing.
Publisher	Autarch LLC	Fausto Botta
Year	2024	2025
Languages	English	English
Best For	Groups who want a B/X-rooted OSR game that seamlessly scales from dungeon crawling to ruling kingdoms, with deeply integrated economics, domain management, and mass combat.	Groups who want a long old-school sandbox campaign that turns treasure into faction rank, training and eventually conquered land.
Highlights	Detailed domain and kingdom management rules, economics and mercantile systems are integrated throughout, mass combat scales from skirmishes to wars, 18 classes with quick-start templates, builds on B/X foundations	There are no hit points: wounds lower Ability scores directly, so an injured character can carry less treasure home. The lawful factions sell ranks and months of training for gold, so treasure replaces experience as the advancement currency. Each exploration turn, the referee secretly rolls hazard dice sized by difficulty (1d6 on plains, 3d6 in swamps), and each 5 or 6 adds a complication or an encounter.
Considerations	540+ page rulebook is intimidating, tightly coupled subsystems, fantasy-only with narrow genre support, very high GM prep for domain-level play	Dice resolve only a set of defined checks, so players usually get past traps and puzzles by describing what their characters do rather than by rolling a skill. Wounds normally heal at one Ability point per day of rest, and ten or more days of healing cost a month of training. Characters begin as agents of a supremacist colonial reconquest, a premise the book states openly and asks the referee to expose through play.