Replica of a classic dynamite time bomb prop, made from plastic tubes and an electronic timer.
This project focused on creating a highly legible, marshal-controlled time bomb prop designed to add tension, clarity, and spectacle to airsoft game objectives. In total, nine identical units were built, each intended to represent a portable explosive charge rather than a decorative replica. The goal was instant readability, not realism. From distance, players needed to understand what the device was, what it was doing, and what would happen next.
Each unit features a four-digit digital countdown display driven by a microcontroller, starting immediately on activation. Once armed, a fixed sixty-second timer runs uninterrupted, ending in a loud electronic pyro detonation that marks the objective as destroyed. There is no disarm phase, no puzzle, and no ambiguity. The tension comes from visibility, time pressure, and the need to defend the device while the countdown runs.
Physically, the prop is built around clustered faux dynamite tubes wrapped in printed brown paper labels, capped and wired for visual impact. A compact 3D-printed enclosure houses the electronics and mounts directly onto metal surfaces using a rear magnet. This allows rapid placement on shipping containers, steel doors, barrels, and structural elements commonly found on site.
Used exclusively by marshals or pre-positioned objectives, the time bomb replaces passive markers with a clear, dramatic, and repeatable game mechanic that players immediately understand and react to.