All good things must come to an end. And for 10 Chambers, that end is the final chapter for their horror co-op shooter GTFO. “Rundown 8.0: Duality” is available now as a free content update, raising the number of missions to 80.

The Duality expansion is the nerve-wracking conclusion to the game’s story arc, which tasks a four-player team of prisoners to escape a hellish underground complex known as Garganta. GTFO has continually evolved since the game’s launch in 2019, with Rundown 8.0: Duality being its twelfth free major content update, adding new missions (expeditions) to the game for more than 80 total. The content-packed GTFO: Final Edition treats hardcore cooperative players with hundreds of hours of paranoia, tension, and fear to last for years to come.

“The GTFO story began at The Game Awards when the game was revealed back in 2017, so of course, we felt that it was right to also announce the final chapter at this year’s show,” said Ulf Andersson, 10 Chambers founder and creative director. “It’s important to note that while the story of GTFO comes to a close, the game will continue to be alive and kicking. Whether you’re a new player or part of the existing GTFO community, the full game with four years worth of content is available to complete from start to finish — if you and your squad are up for the challenge, that is.”

GTFO will continue to receive support in the form of bug fixes. Previously released Rundown content updates, which were cycled in and out of the game quarterly since the game’s launch in 2019, will still be freely accessible, and will remain available to the game’s existing fanbase and new players alike.

GTFO: Final Edition is available on Steam (and is Steam Deck Playable) on a 40% off sale until January 4, 2024. Prospective prisoners can play GTFO during the free weekend Steam promotion from December 7 to December 11, 2023. Rundown 8.0: Duality is available now as a free update to owners.