Lairs & Encounters is the ultimate supplement for fantasy RPG sandbox campaigns. Designed for use with the Adventurer Conqueror King System (ACKS), it is readily compatible with other fantasy role-playing games built on the same core rules.

In Lairs & Encounters you will find:

More than 165 ready-to-play monstrous lairs - that's at least one lair listing for every major monster in the Adventurer Conqueror King System. The lair listings are designed to be used both as dynamic points of interest that can be discovered while wandering through the wilderness and as obstacles to a would-be ruler’s attempt to secure land for a domain.

Over 30 new monsters drawn from myth, legend, and imagination, including the amphisbaena, blood hound, chaos hulk, death charger, desert ghoul, dire beastman, draugr, faravahar, hag, khepri, kraken, leyak, rakshasa, sphinx, yali, and more.

New subsystems for sandbox play, including rules for populating 6-mile hexes with lairs based on the terrain and extent of settlements in the region and rules for searching for lairs in the wilderness, factoring in terrain density, aerial reconnaissance, splitting up to cover more ground (never split the party!), and more.

Additional mechanics for monsters, including ability scores for monsters, proficiencies for monsters, and young monsters.

A complete system for taming and training monsters, with details on the lifespan, roles, tricks, trained and untrained value, supply cost, training period, and trainability modifier of every monster in the game.

A complete system for creating your own unique monsters. In the ACKS Player's Companion we gave you mechanics to create balanced new character classes and new spells; now we bring our same rigorous attention to balance and customization to monsters.

Your players may wander lost in the wilderness of your campaign world, but with Lairs & Encounters you’ll be ready wherever they go!