Story Line Secret services have located and neutralized a known terrorist who has been hiding out in a deprived area of the city for the last ten years. This is where the good news ends. It turns out that on the roof of an abandoned high-rise the maniac has installed a nuclear warhead with a timer on it. The building itself has been turned into a tower filled with intricate traps and obstacles. You have been recommended as a specialist in such puzzles, and the secret service has helped you infiltrate the courtyard. The rest is down to you. Can you get past all the traps and preempt a nuclear attack? Multi-player Escape Room Style game. Mission Sigma is not a video game. It is an escape game experience set in a deprived area of the city in virtual reality. You will experience a realistic adventure as if you were there. This game is designed as a multi-player game, where you become the hero and experience in totally safe situations that would be far too dangerous or just impossible to live in real life. Developed by ARVI.