Here is an overview of the game, via its Steam page:

About

Quitting the life of a gunslinger, Rose swore to never again take up arms after her daughter was born. The peace of a loving family was quickly tarnished, as malevolent forces trapped the child’s spirit inside a silver Locket.

To save her daughter’s spirit, Rose will journey through the realms of the Underwest. Along her path, she’ll recover long-forgotten skills and abilities, wield awesome powers, and face countless foes.

Key Features

• A lightning fast action-adventure, full of fast-paced gameplay and cinematic set pieces.
• Gain new combat abilities, and restore your daughter’s spirit.
• Experience a grand story of loss and devotion, set in the fantastical spirit realm of the Wild West.
• Traverse the realms of the Underwest, depicted in breathtaking, hand drawn animation.
• Tackle special modes and challenges, and put your skills to the ultimate test!

Watch a new trailer below.