HVV-Zeitschiene is an interactive city game that takes you on a journey through Hamburg's public transportation history. Developed by Verkehrsbetriebe Hamburg-Holstein GmbH, this Android app offers a unique way to explore the city while learning interesting facts about its transportation system.

The game is designed as a scavenger hunt, where you have to answer tricky questions related to the city's public transportation system at each stop. You will need to use different modes of transportation to reach the next destination and continue the game. With HVV-Zeitschiene, you can test your knowledge about Hamburg and its public transportation system and learn something new in the process.