A game developed by Canadian studio Steel Crate Games released in 2015. The concept is for two or more people to defuse a suitcase-shaped time bomb, one working as the "defuser" and the other(s) as the "expert" using an instruction manual. Each bomb is divided into individual modules which can be solved in any order. The bomb is successfully defused when all playable modules are deactivated. However, neither side can see the other's screen. In keeping with its name, the game relies on communication between the players. The defuser must describe the module they are trying to deactivate to the expert, who must then relay instructions from the manual to the defuser. Certain factors affect deactivation, such as the color and text of certain buttons, particular symbols, number and color of wires, etc. Each bomb allows a number of "strikes", or wrong guesses. If the defuser makes too many strikes or if the timer runs out, the bomb will explode.
The game was originally created for virtual reality systems and other systems supporting VR, but this requirement was removed in a 2018 update.