Secret City Trails bring European cities to live by playing self-guided city discovery games for locals and travellers. You follow in the footsteps of the local creator, solve their riddles and unlock their stories. All via our web app, so no downloads. Our games are unlike traditional walking tours that you need to pre-book, start at fixed times and take you to touristy spots. Our 100 instantly bookable games in 45 European cities take you truly off the beaten path. Our games are loved by customers with a review score of 4,54/5. Transavia Ventures (part of KLM-AirFrance) is a proud investor.