To be a master heister in Thick as Thieves, Warren Spector's 'player-powered' multiplayer Thief successor, the devs say you'll have to 'play with your ears'

Two thieves, one with a mechanical arm, run through dark streets.

At today's Day of the Devs showcase, immersive sim luminary Warren Spector presented the latest on Thick as Thieves, the upcoming multiplayer Thief successor from Spector's studio, Otherside Entertainment. Spector calls Thick as Thieves a "player-powered" immersive sim, where the flow of a match is determined by how your rival thieves are manipulating the game's systems to their own ends.

Revealed back in 2024, Thick as Thieves is a PvPvE first-person stealth game pitting you against rival Thieves Guild members as you race through a dense, intricate turn-of-the-century city to be the first to pilfer a prized item. Otherside says it's got "all the bells and whistles" of its immersive sim forebears, like hiding in shadows and timing your movements with internalized NPC pathing and vision cones.