Here is an overview of the game, via its store pages:

About

Strayed Lights is an atmospheric action adventure with fluid combat and an intricate world imbued with mystery. You are a tiny, growing light seeking transcendence. Explore a land of otherworldly ruins and glowing trees, where entities of flickering lights and luminescent shadows reside.

Key Features

• Harness Energy in Combat – Challenge rogue shadow creatures in fast-paced, rewarding combat. Use a fluid mix of parries and dodges to absorb their energy levels until you can unleash an ultra energy attack. Shift your light from blue to orange in sync with enemies using timed parries, then push energy back at them in vivid finishers.
• Confront Creatures Within and Without – Monsters pursue you across otherworldly regions of mists, tall trees and luminescent ruins. Enjoy evocative boss fights with colossal shadow creatures gone rogue, as well as rhythmic duels with a variety of eerie creatures.
• Grow and Ascend – Build up a unique character that can harness energy to let loose bold attacks. Unlock new abilities and grow from a tiny light to a pseudo-mystical entity imbued with vivid powers.
• Explore a Mysterious Land – Strayed Lights is set in a dark and oneiric world that is as vivid as it is mysterious. Journey alongside a haunting soundtrack that reflects states of feeling in creatures you encounter created by Austin Wintory—composer behind Journey, ABZU, and The Banner Saga series.

Watch a new trailer below, via IGN.

Gameplay Trailer