We turned the street into the game board

Most games about a mystery ask you to imagine the room. We wanted the room to be real.

That is the whole of the idea behind ImmA. An investigation set in a street, a museum, a park or an office, played by people standing in it. You walk to a place because the case sends you there. You scan a code on a wall because something happened at that wall. You talk to a character who remembers what you asked them twenty minutes ago, and who will not tell you the interesting part until they trust you.

Nothing about that is new as an ambition. Live mysteries and treasure hunts have existed for decades. What has always made them rare is the work: somebody has to write the case, place every clue, brief the actors, and stand in the middle keeping it running. That is a week of preparation for one evening, and it is why the good ones are expensive and the cheap ones are a printed sheet of riddles.

So the product is not really "a game". It is the removal of that week.

An Architect writes the investigation and builds it: the map, the cast, the clues, the economy that decides what a team can afford to ask. An Organizer licenses it and runs it at their own venue on their own date. Players turn up with a phone and nothing else. The characters are played by AI, so a scenario can be run on a Tuesday for six people or on a Saturday for sixty without anybody rehearsing.

The part we care most about is the economy, and it is the part nobody expects.

Information in an ImmA case is scarce on purpose. Players earn Action Points by physically going places, and they spend them to ask questions. But the price of a question is fixed, so the strategy is never "can I afford the truth". It is "does this person trust me enough to tell me it". Spend your evening buttering up the fisherman and he opens up. Walk in cold and you get a shrug that is technically an answer.

And you can force it. If you can prove a character lied, using a clue or another character's own words, they have to correct themselves whatever they think of you. That single rule is what turns a group of friends into an investigation. People stop asking questions and start comparing notes.

The first commit was on 5 May 2026. There have been more than a thousand since. It is live, it takes real payments, and you can book one evening of a scenario without talking to anybody, which was the thing we most wanted to be true.