Vampyr: Talisman of Invocation

Welcome to Vampyr: The Talisman of Invocation, an adventure game set in the world of Quilinor. Here, the monsters are very nasty, the merchants very stingy, and the citizens are just a bit crazy. You, as an adventurer, must travel throughout this world to save all these creatures from a certain destruction. It might appear to be a typical task on the surface, but be assured, it's not an easy one.

Source:

Vampyr's readme file