Solve challenges, and as the story unfolds, be led to the next location using directions sent to a cell phone. Download the game into a cell phone and begin exploring. Begin the game at the St. Nedelya Cathedral Church, and end at the Temple of Bulgarian Martyrs. The entire game is designed to take around 1.5-2 hours to complete, but exploring off the game's route is allowed and encourage, and the game can be returned to anytime. Play alone, in a large group, or compete with other groups and meet at the final stop of the game.

Expereince the highlights of the biggest city in Bulgaria on this guided walking tour of Sofia. Take a leisurely walk to past sights like the Alexander Nevsky Cathedral and St. Kyriaki Cathedral Church. Dig into the story behind the sights with the help of your guide.  Be greeted by your guide outside the Alexander Nevski Cathedral and start to explore the town center which is compact and packed with archaeological sites, as well as architectural, historical, and cultural monuments. See over 25 tourist sights in just couple of hours. Trace the timeline of one of the oldest cities in Europe in a comprehensive, interactive, and memorable way. View the 16th-century, Ottoman Sofia Central Mosque and admire the Sofia Synagogue, the largest synagogue in Southeastern Europe. Take in the Neoclassical architecture of the facade of the Ivan Vazov National Theatre and be impressed by the Neo-Byzantine style of the Alexander Nevsky Cathedral and the St. Kyriaki Church.  The local tour operator, Traventuria, was awarded a “Business Which Supports Biodiversity” certification by the Bulgarian Biodiversity Foundation for its “Tours with a Cause” initiative.