Sneak is a hybrid digital tabletop game for two-to-four players about deception, stealth, and social intuition. Each player secretly controls one agent in a procedurally generated supervillain lair. Their mission is to find the secret plans and escape without getting discovered, shot, or poisoned by another player. To accomplish this, players must interact and blend in with a series of computer-controlled henchmen while keeping a close eye on their human opponents for any social cues that might reveal their identity. Sneak introduces a number of systems that are common in video games, but were impractical in tabletop games that did not deeply integrate a smartphone app. These include procedural map generation, NPC pathfinding, dynamic game balancing, and the use of sound.