Following the orbs' evidence from scene-to-scene across the valley, as well as finding telephones and radios that replay conversations, recordings, and broadcasts, eventually provide all of the puzzle pieces to the game's main event, the "rapture".

There are five areas in the game, each of which revolve around a different character, with the main protagonists being Dr Katherine "Kate" Collins and her husband, Stephen Appleton, both scientists at the observatory.

After confronting Stephen about his ongoing affair with his former fiancé Lizzie Graves, Kate locks herself in the observatory and spends the vast majority of the story attempting to communicate with the pattern.

Convinced that this is connected to the pattern and that it will spread beyond the village if not contained, Stephen urges the local government to quarantine the area, blocking the roads and cutting the telephone lines.

The locals are told that it is due to an outbreak of Spanish flu, though many are skeptical of this and become even more so when the corpses of the dead begin to disappear into thin air.

In the penultimate chapter of the game, the player is led to a bunker where Stephen waited out the nerve gas bombings with the intention of killing himself once he ensured that every other infected person in the valley is dead.

[3] The developers were inspired by "the very British apocalyptic sci-fi of the 60s and 70s", like John Christopher's The Death of Grass and Charles Eric Maine's The Tide Went Out.

[5] The voice cast includes Merle Dandridge, Oliver Dimsdale, Aimee-Ffion Edwards, Susan Brown, and Jonathan Bailey.

The team made the decision to partner with Sony's Santa Monica Studio as they felt they could not raise enough money for the project through crowdfunding sources or through sales of alpha versions.

[11] GamesRadar called the game "brave, [...] challenging, and [...] essential",[12] while IGN talked about "a beautiful, heart-breaking journey into the end of the world".