Inspired by Dark Messiah and Thief, this stealth game sees you sneak through a medieval megastructure prowled by undead guards

The Citadel Project is a stealth game that melds elements of Thief and Dark Messiah. Developed by Reliquary Software, the game takes place within a colossal medieval structure filled with undead guards. The player assumes the role of a prisoner with a sickle weapon, attempting to escape the fortress undetected. The game's visual style is dominated by shadows and stealth is a crucial aspect of gameplay, as players must navigate the environment without being seen.

The crossbow wielded by the protagonist has various ammo types, such as water bolts and moss quarrels. Dark Messiah's influence is felt through the game's physics engine, allowing players to shove enemies off ledges or into spike traps. The Citadel Project offers a demo, which places the player in a series of subterranean caverns as they attempt to escape their confinement.

Although the game is predominantly a stealth experience, it does include elements of combat, including a parry system. Players can upgrade their character and access story elements via checkpoints and notes scattered throughout the game world. The Citadel Project is currently set to release on Steam's early access program on November 11, with the full game launch anticipated in December.