
1 / 6Heidelberg Self-Guided Detective Murder Mystery Game
About this activity
Become a detective and unravel a Sherlock Holmes-inspired mystery across Heidelberg's historic streets in this self-guided mobile game. Solve puzzles and follow clues at your own pace, turning the city into your personal crime scene while exploring its hidden corners.
The case starts at the Heiliggeistkirche in Heidelberg, on the long market square in the middle of the old town. From there the route leads to the Kornmarkt and out onto the Alte Brücke, then back into the lanes on the other side. It is a self-guided detective game, and the old town of Heidelberg is where it happens.
Heidelberg's centre is long and narrow and mostly level, but the route does take you uphill at one point, so expect a climb. Groups of friends, families with children, couples and colleagues all handle it, and single players are welcome. Teams run to four people at most, on one phone, while larger groups split into more teams. No guide, no fixed start time: you decide when to set off and when to stand still.
How to play
Four steps come first, then the case in Heidelberg is yours.
- Book the City Game
- Check the instructions email
- Download the Loquiz app
- Start playing whenever you like
The murder of Balthasar is the matter at hand. Clues arrive as codes to crack, photo tasks at particular spots, and statements from digital characters that do not quite agree. The climb up to Schloss Heidelberg is part of the route, and with each solved task the number of possible culprits falls.
Several teams playing at the same time makes a race of it, which is what makes it work for teambuilding as well as for a free afternoon. Take a break, come back to it, and finish the case in Heidelberg when you are ready.
Highlights
- ✓Story-driven mystery gameplay with plot twists and hidden clues
- ✓Self-paced exploration — start anytime, play on your schedule
- ✓Teams of up to 4 people per device (1 ticket covers the group)
- ✓Easy difficulty suitable for families with children
- ✓Download the Loquiz app and play immediately after booking
Insider tips
- ★Start early in the day to complete the full 2-hour experience with plenty of daylight for reading clues outdoors
- ★Play in small groups (2–3 people) for better engagement and faster puzzle-solving discussion
- ★Bring a fully charged phone and consider portable battery backup, as the app runs continuously
Good to know
- •One ticket covers 1–4 people on a single device; larger groups need multiple tickets
- •Requires Loquiz app (free download); check email for game access code after booking
- •Gameplay involves outdoor walking through Heidelberg — wear comfortable shoes
- •No fixed start time; begin whenever you arrive on your selected date
Who it's for
Best time to visit
Spring and autumn (April–May, September–October) offer pleasant weather for 2 hours of outdoor walking. Start mid-morning to avoid crowds and ensure you finish before dark.







