Outer Wilds Codexery

Project Comet

A celestial body that brought extinction, not a project.

There is no officially recognized canon entity or initiative known as 'Project Comet' within the Outer Wilds universe. The term is not used in Nomai writings, Hearthian records, or any in-game dialogue. The source material describes the Interloper, an icy comet that enters the planetary system and is investigated by the Nomai. The Interloper contains an extremely pressurized source of 'ghost matter', a highly lethal and invisible substance. When the source ruptured, a powerful wave of ghost matter spread throughout the system, killing all of the Nomai. No other comet or 'Project Comet' is mentioned in the source.

Associated Entity
The Great Comet
Affiliation
Natural Celestial Body / Nomai Observation Target

Lore & Background

The Interloper is an icy comet that entered the solar system long after the Nomai had built their civilization. The Nomai investigating the Interloper found that it contained an extremely pressurized source of 'ghost matter', a highly lethal and invisible substance. Before they could inform the others, the source ruptured and a powerful wave of ghost matter spread throughout the system, killing all of the Nomai. This event is the cause of the Nomai extinction in the system. The Interloper is not tied to the Eye of the Universe, the supernova, or any time loop mechanics. It is a natural celestial body that the Nomai observed and that ultimately led to their demise.

In Their Own Story

The Nomai, having failed to induce a supernova with the Sun Station, were searching for an alternate power source when the Interloper entered the solar system. A team of Nomai traveled to the comet to investigate. Their writings, found in the ruins, describe discovering a highly pressurized source of 'ghost matter' within the comet. Before they could send a warning, the source ruptured, releasing a lethal wave of ghost matter that spread across the entire system. All Nomai in the system were killed instantly. The Interloper remains in the system, a silent monument to the catastrophe that ended the Nomai civilization.

Reader's Guide

The Interloper is a comet that can be visited during any time loop. It orbits the sun on a long, elliptical path. Upon landing on the Interloper, the player can explore its icy surface and find Nomai ruins, including a crashed escape pod and several research camps. Inside the comet, the player can find the source of the ghost matter, a glowing, pressurized core. Approaching it will cause the player to take damage from ghost matter. Reading the Nomai writings in the comet reveals the story of their discovery and the subsequent extinction event. The Interloper is not involved in the time loop, the supernova, or the Eye of the Universe. It is a separate, tragic piece of Nomai history.

Did You Know?

More in Story & Timeline

Elsewhere in the Outer Wilds universe

Spotted an error? Know more?

This is a living reference — every entry is fact-audited, and reader corrections feed straight into our audit queue. Suggest an edit · See this site's audit record

Comments

Loading…
Open in the interactive codex →