THIS SUMMER, COMPLETE ANY HIDDENCITY GAME TO WIN A PRIZE FROM THE TREASURE CHEST

Thousands of prizes are up for grabs when you complete any HiddenCity game between 2 June and 31 August 2025.

Rewards include international flights worth £1,000, a hot air balloon ride worth £600, a Michelin-star dining worth £500, Grand Prix tickets, a luxury champagne and cream tea hamper, ice cream delivered to your door, indulgent iced treats, and exclusive HiddenCity vouchers.

 
Every team is guaranteed a prize.

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A JOURNEY INTO THE WORLD OF A CRIMINAL MASTERMIND

A 3-4 hour experience starting on Marylebone High Street, London

Tickets from £19

Start times: Start between 10.30 and 19.30 Mon-Fri (so latest start time is 19.30), & 10.30 and 17.30 Sat-Sun. Runs on bank holidays.

AN ADVENTURE INTO THE STRANGE, SUREAL AND ABSURD

A 3-4 hour experience starting at
The Coal Hole, London

Start times: Start between 12.00 and 18.00 Mon-Fri (so latest start time is 18.00), 11.00 and 18.00 on Saturdays, & 12.00 and 15.00 on Sundays. Runs on bank holidays.

Tickets from £19

A FAIRYTALE QUEST INSPIRED BY THE WORLD OF SNOW WHITE

A 3-4 hour experience starting at South Kensington Station Arcade, London

Start times: Start between 10.15 and 18.30 Mon-Fri (so latest start time is 18.30), 11.00 and 18.30 on Saturdays, & 12.00 and 18.30 on Sundays. Runs on bank holidays.

Tickets from £19

ENTER THE WORLD OF JAMES BOND

A 3-4 hour experience starting at The National Theatre, London

Start times: Start between 10.00 and 19.30 Mon-Fri (so latest start time is 19.30), 10.30 and 18.30 on Saturdays, & 12.05 and 16.30 on Sundays. Runs on bank holidays.

Tickets from £24

Play guarantee - get a full refund if you cancel, for any reason

Free date changes - as many times as you need

Add players - you can buy tickets for more players later

How to enter

1. Complete a HiddenCity game between 1 April and 30 April 2025 inclusive. See how to play.
2. Creative photo award:
   1. Post a creative photo with #greateggventure and tag us on Instagram, X or Facebook, by 30 April 2025.
   2. Stories and other temporary posts are not eligible.
   3. Any player in the team may enter.
   4. Entrants agree that HiddenCity may use their entry for marketing purposes.
   5. Entrants confirm they have the necessary permissions for all content entered, including any music.
   6. Entries are judged on creativity and seasonal spirit.
3. Creative team name award:
   1. The entrant is the person who is registered as a ‘team captain’ by the person paying for a HiddenCity game (the customer). The customer may enter multiple teams.
   2. Participants may enter up to four times: once per game, by starting each of the four games.
   3. Entries are judged on creativity and seasonal spirit.
4. Top team awards:
   1. The entrant is the person who is registered as a ‘team captain’ by the person paying for a HiddenCity game. The customer may enter multiple teams.
   2. Participants may enter up to four times: once per game, by completing each of the four games.
   3. The four top teams who finish each of the four games in April will receive a giant egg:
      1. The top team for each game will receive a 4kg egg.
      2. The 3 runners for each up will receive a 2kg egg.
      3. Top teams are determined by average time per clue, as shown in the leaderboard.
   4. The judges will form a view about fair play and team times, and may make adjustments or disqualify at their discretion.
   5. Fair play rules include:
      1. Entrants may only play each game once.
      2. Entrants may not play a game that they have played before the competition.
      3. The judges may consider petitions for time adjustments, due to issues outside player control, at their discretion.
         
         How we'll let you know if you've won
5. Winners will be contacted via the team captain’s email address or the social media account used to post an image.
6. The winners must claim their prize within 14 days by providing a postal address for receipt of their prize.
7. If a winner does not claim the prize within 14 days, HiddenCity may select an alternative winner.
   
                Terms, amendments and exclusions
8. HiddenCity may publish entrants’ names, team names and results, and may repost any photos entered. No other team details will be published.
9. HiddenCity may amend the competition if necessary.
   
10. Prizes are non-transferable.
11. Employees or the employees’ families of HiddenCity may not take part in the competition. Employees of Cocoba are permitted to participate.

1. Top the leaderboard
1st place in each game: 4 x ENORMOUS 4kg eggs worth £225 each
Runners up: 12 x HUGE 2kg eggs worth £125 each

2. Pick a creative name for your team 
4 x HUGE 2kg eggs to be won, worth £125 each

3. Share a creative team photo, tagging #greateggventure
1 x ENORMOUS 4kg egg could be yours, worth £225

THREE WAYS TO WIN A GIANT EGG THIS APRIL

See competition rules.

1. Top the leaderboard
1st place in each game: 4 x ENORMOUS 4kg eggs worth £225 each
Runners up: 12 x HUGE 2kg eggs worth £125 each

2. Pick a creative name for your team 
4 x HUGE 2kg eggs to be won, worth £125 each

3. Share a creative team photo, tagging #greateggventure
1 x ENORMOUS 4kg egg could be yours, worth £225

THREE WAYS TO WIN A GIANT EGG THIS APRIL

See competition rules.