So, the first quest is called “E.R.O.R. 404". The essence is that every week of every month, the OKO cybersecurity detachment recruits volunteers for a raid into the uncontrolled territory. They must sneak into the central headquarters and understand what happened there… is it a mistake?

Interactive immersion in the life of a real bunker in conditions close to a nuclear explosion is promised to participants in the MTC 825-T VG quest. The organizers are convinced that 60 minutes will be enough to understand all the feelings and emotions of a person immured deep underground.

"We also offer the Mystery of the Underground City quest. The city, full of unpredictability and danger, could not withstand the threat and, in the face of fear of the future, decided to join efforts. For many years there have been rumors about the inhabitants of this city… Who is Henry? How to find him? What is he hiding from everyone? You have to get there and find answers to these questions on your own!" the press service of the museum complex intrigued.

The museum staff members added that participants must build a team in advance and book a time to complete the selected quest. This can be done by phone: +7 978 668-98-78 or by writing a message to the VKontakte museum complex group.

In addition, the guests are offered a new exposition "Knights of the Black Sea Depths", opened in May this year and showing in detail all the nuances of the underwater life of the military, as well as a new excursion route that runs directly under the C-49 submarine:  everyone can go down into a dry dock at a depth of 10 meters below sea level and literally touch the keel of a submarine.

The museum is open daily from 09:00 a.m. to 09:00 p.m. (last tour starts at 19:30). Ticket offices are open from 08:45 a.m. to 07:00 p.m. Sanitary day off is the last Monday of each month.

The cost of a walking self-guided tour with an audio guide:  an adult ticket is 700 rubles (about $12), for children from 7 to 13 years old it is 350 rubles (about $6), for children under 7 years old − free of charge. Children from 14 to 22 years old can pass on a Pushkin Card.

Visiting rules for preferential categories can be found here.

Address of the museum complex: Balaklava, 11 Tavricheskaya promenade.