Degrees of Separation (Steam key / Region Free)

https://store.steampowered.com/app/809880/Degrees_of_Separation/

Degrees of Separation is a 2D puzzle-adventure game that requires players to harness the elements of heat and cold to succeed.
Two contrasting souls, Ember and Rime, are separated by an enigmatic force, and must use their respective powers to progress through a spectacular world of fantasy and adventure.
Players take on the roles of Ember and Rime in single-player and cooperative multiplayer to solve the game´s environmental obstacles, drawing on their unique skills to traverse through beautiful, puzzle-filled environments.
The two will learn to lean on one another, their individual forces working to bring them closer together...or tear them apart.

Features
2D Adventure Platforming
Experience beautifully crafted 2D worlds with a deeply immersive art style based on the aspects of contrasting temperatures.
Innovative Storytelling
Discover the potential of dual protagonists Ember and Rime and follow a complex story by acclaimed video game writer Chris Avellone.
Environmental Puzzles
Navigate distinct worlds and solve complex puzzles to organically alter situations and surroundings.
Cooperative Gameplay
Harness the powers of Ember and Rime in both single-player and cooperative multiplayer to interact with the environment in a variety of ways, both separately and as a team.
Non-Linear Levels
Traverse through diverse landscapes that each introduce a new game mechanic, weaving together gameplay, narrative, and character progression.