The Eternal Castle is a stunning platform/action indie game from Leonard Menchiari, Daniele Vicinanzo, and Giulio Perrone, and published by Playsaurus in 2019.
It is a tribute to games such as Another World, Flashback, Limbo, and INSIDE, and features a lone character, running from left to right, moving from puzzle to puzzle, trying to survive in a weird, dark world full of technology, destruction, mystery and death.