MYSTERIEHELDEN
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Main entrance · Headquarters

Welcome to Headquarters

Choose a case, receive your access code and step into a mystery unfolding in the real world.

View casesHow does it work?
“Every case starts with a question. Yours starts here.”
Claire Typtgraeg — Receptionist, Headquarters

  • No account needed

    No sign-up, no hassle.

  • Instant access

    Your code arrives right after payment.

  • Secure payment via Stripe

    Pay the way you always do.

  • Play whenever you like

    Daytime, evening or weekend.

Featured cases

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Case MH-001

Open

The Missing Art Crate

A transport crate leaves the depot and never arrives. The paperwork is flawless — too flawless.

Type
Active Case
Department
Investigations
Location
Delft — Old town
Duration
2 hrs 30 min
Team
2–6 people
Open case file

Case MH-002

Open

The Shadow of Mrs Moreau

Mrs Moreau boarded the 7:12 train and has not been seen since.

Type
Missing Person
Department
Missing Persons
Location
Dordrecht — Historic centre
Duration
2 hrs 15 min
Team
2–6 people
Open case file

Case MH-003

Open

The Code of Professor Stern

Closed eleven years ago for lack of evidence. The evidence was in the archive all along.

Type
Cold Case
Department
Cold Case Unit
Location
Leiden — University quarter
Duration
2 hrs 40 min
Team
2–5 people
Open case file

How does it work?

Full explanation
  1. 01

    Choose a case

    Browse the case files and choose the investigation you want to take on.

  2. 02

    Purchase access

    Pay securely through Stripe. Your access code follows immediately.

  3. 03

    Play in the app

    Head out, solve the clues and unravel the mystery.

Questions

We work with remarkable locations across the Netherlands: municipalities, estates, museums and cities.

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Partners

Our partners

We work with remarkable locations across the Netherlands: municipalities, estates, museums and cities.

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