The survival horror title Amnesia: A Machine For Pigs is free to download from the Epic Games Store. Developed by The Chinese Room and published Frictional Games, it is an indirect sequel to Amnesia: The Dark Descent.
The store page describes the plot as follows:
“Wealthy industrialist Oswald Mandus awakes in his bed, wracked with fever and haunted by dreams of a dark and hellish engine. Tortured by visions of a disastrous expedition to Mexico, broken on the failing dreams of an industrial utopia, wracked with guilt and tropical disease, he wakes into a nightmare. The house is silent, the ground beneath him shaking at the will of some infernal machine: all he knows is that his children are in grave peril, and it is up to him to save them.”
You can download it for free from the digital storefront here until October 22nd 2020.