An escape room built inside a modified shipping container or adapted trailer operates as a fully self-contained experience space. The operator drives it to the chosen location, parks it, and has it running within a short setup window. Inside: electronic puzzles, RFID locks, lighting and sound effects, and a narrative scenario. The client pays per group; the operator needs no permanent premises and no on-site staff between sessions. Key risks include a high initial capital outlay, dependence on seasonal bookings, and a demanding certification process. Achieving payback requires systematic capacity utilisation, long-term agreements with event agencies, and a robust marketing plan in place before launch.