During the Day of the Devs showcase, Warren Spector unveiled details about Thick as Thieves, a new multiplayer successor to the Thief series, developed by his studio, Otherside Entertainment. Spector describes this game as a “player-powered” immersive sim, where the strategy of each match relies on how players manipulate the game’s systems against rival thieves.

Announced in 2024, Thick as Thieves is a player-vs-player-vs-environment (PvPvE) first-person stealth game. Players compete against members of a Thieves Guild in a labyrinthine urban setting, aiming to steal prized items first. Otherside promises the game will feature classic immersive sim mechanics, like hiding and movement timing.