
The Lost Testament Kids
A wealthy countess murdered before she can change her will. Who is the culprit? A mystery that needs to be solved!
Company for a birthday, work team, or just a big group of friends? These 5 escape rooms in Oostrum accommodate 7+ people — with space, parallel puzzles, and a role for everyone.

A wealthy countess murdered before she can change her will. Who is the culprit? A mystery that needs to be solved!

Professor Kraai has put a poison in the drinking water: if parents drink, children can't have anything more! Solve puzzles, find the crystal and make the parents happy again!

Dive into a mystery game full of suspense and hilarity! Where are the rings? Solve the puzzle before the wedding starts! The clock is ticking, work together and save the day!

On the eve of the wealthy countess changing her will, she is found dead. Who is the murderer? Solve this case!

Find yourself in an old psychiatric institution. Stories of screams and shrieks. The last researcher never returned. Can you unravel this mystery?
Most escape rooms are limited to 4–6 players, so finding one for a large group is a classic organizer's headache. This page features rooms in Oostrum that can actually accommodate 7, 8, and even 10+ people: large multi-room sets, duel formats where two teams compete, and venues that run multiple rooms simultaneously.
For corporate events and birthdays, call the venue after booking: many offer party rooms, championship formats across multiple escape rooms, and group discounts that aren't even listed on the site.
Practical tip: in a large team, appoint a "captain" to gather findings and keep track of time — with 8 pairs of hands, the bottleneck isn't the complexity of puzzles, but communication. Duel rooms solve this by splitting you into rival teams.