Secret of Underground City: Dead Drop
What is Secret of Underground City?
The "Secret of Underground City" series is our special edition of Open Days. What does that mean? It’s exactly the evening you know – Fun Arena open to everyone without the need for a reservation, with a bar, drinks, and selected activities at great prices – but expanded with a themed game that will lead you through the most hidden corners of the entire Fun Arena complex.
Each installment of this series has its own unique subtitle and story:
- Insider Tip (First mission – successfully completed)
- Dead Drop – COMING SOON! (A detective-spy plot)
- Immortality Chip (Coming next...)
(These installments are standalone, so you can play any mission without having visited previous ones.)
CURRENT MISSION: Operation Dead Drop
Tonight, the entire arena transforms into a scene for a spy investigation. In addition to regular fun, you can join the special mission "Dead Drop." Hidden deep within our cyberpunk Fun Arena is a "dead drop" containing secret information, and your task is to find it and extract it.
The game isn't confined to a single room – it takes you across the entire Fun Arena. To complete your mission, we’ll lend you special equipment. You’ll use UV lights to reveal clues, a hacking terminal, or a secret phone booth. If you find the drop through your observation and skill, you’ll gain an advantage that you can't get anywhere else in Underground City!
Suitable for children: The game focuses on searching and using interesting gadgets rather than complex riddles. Game duration is approx. 45 min.
How to join the Dead Drop game?
Just show up and sign up at the bar in Underground City. Our staff will explain everything and lend you the special equipment. Last players are allowed into the game at 21:30!
WHAT CAN YOU LOOK FORWARD TO?
- Dead Drop (spy detective game) – Price: 4 coins (max 2 people) / 8 coins (max 4 people)
- Robot Battles (1 coin / person / 5 min)
- Axe Throwing (1 coin / person / 5 min)
- Cyber Arcade (6 coins / person / 1 h)
- Human Foosball (5 coins / whole activity / 10 min)
- Darts (2 coins / Dartboard/ 30 min)
- Darts, Billiards, and Foosball (FREE until 00:00)
- Bar, draught beer, drinks, and pizza all evening long!
HOW DOES IT WORK?
- Entry fee is 200 CZK and includes game Cyber coins (see below).
- No reservation needed, just show up anytime during the open evening!
- All paid activities run on Cyber coins (1 coin = 50 CZK), which you can exchange at the bar.
ADMISSION & CYBER COINS
Buy your ticket online and get a bonus token:
- ONLINE PRE-SALE: For 200 CZK, you get 5× Cyber coins (250 CZK value).
- ON THE SPOT: For 200 CZK, you get 4× Cyber coins (200 CZK value).
Use coins for activities; extra coins can be purchased anytime at the bar.
OPEN DAY vs. PRIVATE RESERVATION
- No group of 6+ people required.
- Try more activities in a shorter time and for less money.
- You're not alone – meet new people and soak up the community atmosphere.
- While private reservations offer zero wait time, Open Days might have a small queue (the perfect time for a drink!).

