At Eternity's Hatch

Explore an intricate time travel system built on a consistent set of rules at the core of everything you do. With a looping 1955 and an ever-advancing 1992, create endless timelines, travel between branching realities and make use of the consequences of your actions. As you progress, you will learn how the system works and discover new ways to use its rules to shape reality to your advantage.

It's 1992, and you’re a research engineer for a secretive organisation tasked with researching artefacts affected by time travel. After an incident at the lab, you're transported back in time to 1955 aboard a research vessel converted from a fishing trawler. On returning to 1992, you realise things aren't the way they used to be. Stranded at sea in an alternate timeline, explore the ship, interact with its crew, solve environmental puzzles and uncover the story of a scientist and former WW2 sailor obsessed with the Anomaly, a mysterious weather event that created time travel and poses a threat to humanity. Your choices and actions will shape the outcome as you uncover the ship's history and search for a way home.

Advance closer to your goals by learning how to use the time travel system, acquiring knowledge of the time machine and what lies within it. What form does the time travel take? What are the rules? What are the limitations? How can you use it to your advantage? Your progression is defined by your understanding of both the system and the events that unfold around you, with new discoveries opening up new ways to interact with the world.