Review · NANTES
Nantes Self-Guided Sherlock Holmes Murder Mystery Game
The most unusual part of this Nantes activity is that the city becomes your mystery board. You start at Basilique Saint-Nicolas, open the Loquiz app, and follow a story about the murder of Balthasar through puzzles, digital characters, codes, and photo tasks. It is part walk, part game, and part group challenge.
I like the freedom to choose your start time and the low group price. I also like that the route keeps you moving through central Nantes instead of putting you in a tram or a fixed indoor attraction. The main drawback is that this is not a guided tour, so you get no live storyteller, local history talk, or help with a tricky puzzle.
Key points
- Balthasar’s murder: The game gives your walk a clear story, with clues and plot twists leading toward the solution.
- Basilique Saint-Nicolas start: Begin at Place Félix Fournier, a central meeting point that is easy to reach by public transportation.
- Up to four people per device: One ticket covers a group of one to four, making this a good-value activity for friends or families.
- Easy puzzle level: The challenges are designed for broad appeal, including families with children and groups of teenagers.
- Two-hour city walk: You can expect a moderate time commitment that fits neatly into a half-day in Nantes.
- Flexible self-guided format: Pick any start time on your chosen date and play at your own pace.
Starting the Case at Basilique Saint-Nicolas

Your detective work begins at Basilique Saint-Nicolas de Nantes, at Place Félix Fournier. This is the fixed starting and ending point, so you do not need to arrange a complicated meeting across town or worry about finding a guide at a precise minute.
The location also gives the game a sensible city-center base. From there, you use your phone to begin the Sherlock Holmes story and receive the first instructions. The exact sequence of clues is part of the game, so the attraction is in solving what comes next rather than following a prepublished sightseeing list.
You should arrive with your group ready to walk. The game uses the scenery of Nantes as its playing area, and one useful result is that you can see parts of the central city without relying on public transportation. This is not a formal architecture tour, but the streets and public spaces give the mystery a real-world setting.
The starting point is near public transportation, which helps if you are coming from another part of Nantes. Still, the experience itself is designed as a walking activity. Wear shoes that you can use comfortably for about two hours, and keep your phone charged before you begin.
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How the Loquiz Mystery Works

After booking, you receive an email with instructions and access details. You then download the Loquiz app and use your phone to run the game. This preparation is simple, but it matters: you do not want to be standing at the basilica trying to install an app while your group is eager to start.
The game is self-guided. There is no host waiting at the starting point, and no staff member walking beside you. Instead, the app supplies the story, digital characters, clues, and tasks. That format gives you privacy and control, but it also means your group must manage its own pace and discussion.
The central case concerns the murder of Balthasar. As you move through the city, you work toward the solution by completing puzzles and following the storyline. The game includes plot twists, so the order of information matters. Try not to rush through the text. A group that reads carefully and discusses each clue will usually get more from the experience than a group that treats it as a simple race.
You may be asked to crack codes, identify useful details, and complete photo tasks. Those photo challenges add a social element that ordinary audio guides do not have. They also give younger players a job to do beyond staring at a screen.
The phone is both your map and your game board. That is convenient, but you should remember that a smartphone is not included. Bring your own working device. The booking is for the game itself, not for a rental phone or other equipment.
A Two-Hour Route Through Central Nantes
The advertised duration is about two hours. That makes this a good fit for a free afternoon, a break between larger sightseeing plans, or an activity before dinner. You choose the start time on your selected date, so you are not tied to a fixed departure.
The route appears to focus on central Nantes, with the city providing the physical setting for the investigation. The experience ends back at Basilique Saint-Nicolas, which keeps the logistics tidy. You do not need to arrange a taxi from a distant finish point or guess where the final clue will leave you.
One appealing feature is the way the game gives purpose to a city walk. Without the mystery, you might pass through central streets simply on the way to another attraction. Here, the route asks you to look around, find clues, and pay attention to the surroundings.
Do not expect detailed explanations of Nantes landmarks. Information about the city’s highlights is not included, and there is no live guide to explain the history of the basilica or the buildings along the way. If your main goal is historical interpretation, choose a conventional walking tour instead. If you want a reason to explore on foot while solving a case, this format is a better match.
The walking element also depends on your group. Some teams will stop often to discuss a clue or complete a photo task. Others will move quickly. The two-hour estimate gives you a useful planning figure, but the self-guided setup lets you play at your own speed.
Puzzles Easy Enough for Families

The difficulty is listed as easy, which opens the activity to a broad age range. Children can take part, and teenagers may find the detective theme more engaging than a standard city walk. Four teenagers have reportedly become absorbed in the game and worked through the puzzles as a group, which is a useful clue for families planning an afternoon together.
Easy does not mean empty. The game still includes codes, twists, and connected clues. The point is to offer a challenge that most groups can solve without needing specialist knowledge or advanced puzzle experience. That makes it suitable for mixed groups, where one person may love escape rooms and another may be trying this kind of activity for the first time.
I would give the group clear roles. One person can read the story, another can watch for details in the city, and someone else can handle the app. Rotate those jobs so one player does not control the entire experience. For families, let children inspect the surroundings and suggest answers before adults step in.
The game can be played alone, but its strongest use is as a shared activity. With friends or family, the discussion is part of the fun. You will probably spend as much time debating a clue as you do entering an answer.
Colleagues can also use it as a light team activity. Since the game is private, your group does not need to match the pace or mood of strangers. Larger groups can buy multiple tickets and split into teams, although the supplied information does not specify how teams are timed or compared.
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The Value of One Ticket for Four People

The price is $23.17 per group of up to four people. That means the per-person cost can be very low if you fill the four available places. At the maximum group size, the price works out to about $5.79 per person, before any currency or booking charges that may apply.
That is strong value for a two-hour activity, particularly for a family or a group of friends. You are paying for a private game rather than four separate admissions. A solo player pays the full group price, so the deal is less impressive if you are playing alone.
The value also comes from the flexible timing. You do not need to build your day around a fixed departure, and you can choose a convenient start on your selected date. That helps if you are combining the game with other plans in Nantes.
The tradeoff is that the price does not include a guide, transport, a smartphone, or a traditional introduction to the city. You are buying a digital murder mystery, not a sightseeing package. Compare it with the cost of a guided walking tour only after deciding which kind of experience you want.
For a family with teenagers, the price is especially practical. Four people can share one booking, and the game gives everyone something to do. For two people, it remains reasonable, but the savings are smaller.
What the Teen-Friendly Format Gets Right
The murder mystery theme gives the walk a clear goal. Instead of asking children to admire one more building, you ask them to help solve a case. That shift can make a central city walk feel more active.
The photo tasks are another good touch. They break up the code solving and encourage players to use the streets around them. Since the tasks are part of the digital game, your group can work together without needing extra materials.
The story also helps hold attention. Digital characters and plot twists create a sense of progress, even when the group is simply walking from one clue to another. The strongest response to the activity has come from this combination of well-formed puzzles and a group of teenagers getting fully involved.
There are limits. The game is marked easy, so experienced escape-room players may want something harder. A group looking for demanding logic puzzles should keep its expectations in check. This is built for accessible fun, not a competition for expert puzzle solvers.
Young children may need an adult to read the instructions or manage the phone. The supplied information does not give a minimum age, so you should judge your children by their ability to follow a story and join simple puzzle solving. The easy level makes family participation possible, but it does not guarantee that every child will stay interested for two hours.
What You Do Not Get Along the Way
This activity does not include information about Nantes highlights. You may see interesting places as you follow the route, but the app is focused on the case rather than on explaining monuments, neighborhoods, or local events.
That distinction is important. If you want a guide to tell you why a building matters, how Nantes developed, or what to visit afterward, add a separate sightseeing tour or guidebook. The Sherlock Holmes game works best as an entertainment activity with a city setting.
You also do not get live interaction with a guide. If your group gets stuck, there is no person beside you to offer a hint in the way a hosted escape room might. Read the instructions carefully, discuss the clues, and make sure everyone can see the relevant information on the device.
On the other hand, the lack of a guide is exactly what some groups will appreciate. You can pause, talk, take a break, or move at your own speed. You do not have to keep up with a large group, and the activity is private for your party.
Service animals are allowed, and most people can participate. The experience is near public transportation, but you still need your own smartphone or device to play.
Planning Your Nantes Detective Afternoon

Before starting, download the Loquiz app, read the instruction email, and check your phone battery. These steps are small, but they prevent the most common practical problems with a phone-based activity.
Book one ticket for one to four people using one device. If your party is larger, buy multiple tickets and form separate teams. The information provided does not explain whether each team follows identical clues or how the teams coordinate, so treat the groups as separate games unless the instructions say otherwise.
Pick a start time that leaves room for the full two hours. Since the game ends where it begins, you can plan a meal or another activity afterward from central Nantes. Avoid placing an important timed reservation immediately after the game, since puzzle speed varies by group.
Free cancellation is available if you cancel at least 24 hours before the selected start time. Within 24 hours, you should expect no refund, and changes are not accepted. The cut-off follows local Nantes time.
Should You Book the Sherlock Holmes Game?
Book it if you want a private, low-cost way to explore central Nantes while solving an easy mystery. It suits families, teenagers, friends, colleagues, and solo players who like phone-based games. The best reason to choose it is the combination of a two-hour walking route, flexible timing, and one price for up to four people.
Skip it if your priority is local history, a live guide, or advanced puzzle difficulty. You will not receive a detailed introduction to Nantes, and you must bring your own smartphone and manage the game without staff.
For most groups, I would call it a good-value afternoon activity rather than a substitute for a proper city tour. Come ready to read, discuss, walk, and occasionally pose for a photo task. If that sounds like your kind of sightseeing, the murder of Balthasar gives your Nantes walk a useful sense of purpose.
FAQ
Where does the Sherlock Holmes game start?
The game starts at Basilique Saint-Nicolas de Nantes, Place Félix Fournier, 44000 Nantes, France.
Where does the activity finish?
The activity ends back at the starting point, Basilique Saint-Nicolas de Nantes.
How long does the game take?
The game lasts approximately two hours.
How many people can use one ticket?
One ticket covers a group of one to four people using one device. Larger groups can purchase multiple tickets.
Do I choose the start time?
Yes. You can choose any start time on your selected date and play at your own pace.
Do I need a smartphone?
Yes. You need to bring your own smartphone or other device. After booking, you download the Loquiz app and follow the instructions sent by email.
Can I cancel for a full refund?
Yes, if you cancel at least 24 hours before the experience start time. Cancellations made within 24 hours are not refunded, and changes within that period are not accepted.
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