The Witness is now free to download from the Epic Games store until April 18.
Developed by Braid designer Jonathan Blow and his team at Thekla, it’s a first-person puzzle game in which players explore a visually arresting, abandoned island in a bid discover clues, regain their memory, and ultimately find their way home.
Originally released in 2016, The Witness normally costs £29.99 on the Epic Games store.
The Epic Games store offers users a free game every two weeks. Following The Witness, sci-fi action RPG Transistor will be free to download until May 2.
It offers developers an 88 per cent share of the revenue their games bring in, compared to the 70/30 per cent revenue split offered by Valve.
The more attractive revenue split has helped Epic secure some major PC exclusives, including February 2019 release Metro: Exodus and the recently announced Borderlands 3, which won’t arrive on other PC storefronts until six months after its initial release.