Outdoor escape game by Qula — not a physical escape room, but a self-guided puzzle trail through Assen. Assen is known for its role as capital of Drenthe, once called the 'City of Palaces'. The City Trail takes players through the city at their own pace: on the smartphone they solve riddles and tasks that lead from place to place, past landmarks such as Mannes de Hond, Bartje, Jozefkerk, and Drents Museum. It is an independent treasure hunt without a guide, with the team with the most points winning.