Trapped in a secret underground city during the Roman Empire, twenty-three lost souls cling to life.

In this precarious utopia, if one person breaks the mysterious Golden Rule, everyone dies.

As a time-traveller drawn two thousand years into the past, you’ll relive their final moments in an endless loop, exploring and interrogating, and changing the course of the day with each secret you uncover.

Only by cleverly exploiting the time loop and making difficult moral choices can you hope to solve this epic mystery. Here, your decisions matter.

The fate of the city is in your hands.