Shift At Midnight casts players as gas-station workers whose routine duties carry a lethal complication: some customers are doppelgangers. Keep shelves stocked, handle deliveries, clean the store and meet each night’s sales quota, while checking customers’ IDs, comparing details in the computer and watching their behaviour. The shifts are randomly generated, so the management routine is framed as a changing sequence of investigations rather than a fixed customer checklist.
A mistaken release can bring a creature back later in the shift, turning service work into a survival scramble. Players can barricade doors, set traps and hide; the game also describes executing suspected impostors, with the practical warning that the mess must be cleaned up. Multiplayer co-op is presented as a central part of the design, with proximity chat intended to support coordination as friends investigate customers and respond to danger. A single-player option is listed too, offering another format for tackling the same premise.
The listed modes include Story Mode, described as having thirteen randomly generated shifts, and Endless Mode, marked BETA in the source, alongside character customisation. That mix of shift-based management, deduction and sudden defense gives player-count figures useful context: they reflect activity in a game built for both solo play and cooperative sessions, where working together is explicitly encouraged. The source also mentions an Endless Mode update as planned, not as a feature to assume is already available.