Labyrinth of Refrain: Coven of Dusk is a role-playing game developed by NIS America for Windows. In this game, you become the living book, Tractatus de Monstrum, and command a brigade of puppet soldiers as you navigate the twisting passageways of the Labyrinth of Refrain. You can prepare for your journey by upgrading your brigade, creating new puppet soldiers, assigning them different squads and formations, synthesizing better equipment, taking requests from townsfolk, and getting assistance from Dronya in the form of Witch Petitions.

Once you enter the labyrinth, you need to search every nook and cranny as you jump over barricades, solve puzzles, and smash your way through walls to delve further and further downward in search of treasure and rare artifacts. However, the more riches you obtain, the more vicious the dungeon becomes. You need to fight past terrifying monsters by giving orders to your puppet brigade. You can change their formation, use special skills, or call for an all-out attack! The battles you face will be challenging, so your success depends on your preparation and strategy.