🔑🌐Iris.Fall [steam key]

https://store.steampowered.com/app/907470/IrisFall/

Solve clever puzzles and uncover an intriguing story full of mystery and wonder. With “light and shadow” as a core concept, Iris.Fall takes players on a monochrome adventure unlike any other.

Story background:

After awakening from a dream, Iris follows a black cat into a dilapidated theater, traveling back and forth through a strange labyrinth of light and shadow. As the story unfolds, Iris begins to realise that everything in this theater seems to have some kind of hidden connection to herself.