An untitled Soul Symphony prequel game was produced and played, in order to test the battle mechanics which were intended to be used in the then-upcoming game Revelation. The game was a hybrid PCG/RPG, in that it had screens (which were all re-used from Exile) and RPG battle mechanics.
Story[]
The city of Diz, in its final days, is being torn apart by war. Meanwhile, Modestus is enacting the final stages of his plan, which will initiate the Diz Catastrophe. A small group of survivors fights their way across the city, saving as many other survivors as they can.
Ending[]
They arrive just in time to see the plan enacted, which blasts the city off the face of Soluna and into another universe.