Ten games, right through Amersfoort.

The whole tour is in English: the story, the narration, the fun facts and the games. The app also runs in Dutch, German and French, and the choice is per phone, so you and your Dutch friends play in one team, each in your own language.

A bit of both. You walk a route of about 2 km through the old centre, so you see as much of the city as you would on a walking tour. Only there is a game waiting at every stop, and that is what makes it a hunt: you are searching, drawing, guessing and estimating together instead of trailing after a guide.

City game is another name you will hear, and that is fair. What it is not is a puzzle trail or a city escape game: there you solve riddles together, here every stop has a game that everyone joins in on.

Ten different ones, and all of them games you play together on the spot where you are standing. You draw something and the others guess what it is, you hunt for the differences between an old city gate and a photo of it, you estimate how tall a church tower is, or you keep track of time by feel with nothing to check it against.

You don’t need to know anything beforehand or be good at anything — in most of the games an 8-year-old is just as good as an adult.

The route is about 2 km, with ten stops. You can do it all in an hour and a half; with a terrace along the way it is closer to two.

The games are made to work as well with two players as with twenty. Playing on your own works too, though it isn’t what the tour was built for — the games turn on what happens between you. With small teams, some games add attempts from other players so the guessing doesn’t get too easy.