Here is an overview of the game, via its Steam page:
Survive and unveil the mysteries of the Weird West through the intertwined destinies of its unusual heroes in an immersive sim from the co-creators of Dishonored and Prey.
Discover a dark fantasy reimagining of the Wild West where lawmen and gunslingers share the frontier with fantastical creatures. Journey through the origin stories of a group of atypical heroes, written into legend by the decisions you make in an unforgiving land. Each journey is unique and tailored to the actions taken—a series of high stakes stories where everything counts and the world reacts to the choices you make. Form a posse or venture forth alone into an otherworldly confines of the Weird West and make each legend your own.
Watch the announcement trailer below. View the first screenshots at the gallery.