Photo: upstate_o
Navigation
SELECT DESTINATION
Shells
Runner shell types, stats, and abilities.
Gear
Mods, implants, cores, and equipment.
Maps
Interactive maps with POIs and data.
Factions
Corporations fighting over Tau Ceti IV.
Weapons
Full weapon database with stats.
Lore
Explore the Marathon franchise's lore.
Minimal Timeline
A minimal view of chronological events.
Runner
Manage your runner shells and loadouts.
Crew Finder
Find or form a crew for your next run.
Locker
Your backpack and vault. Coming soon.
Run Logs
Track your session history. Coming soon.
Organizations
Form or join an organization.
Builds
Browse community builds and loadouts.
Compare
Compare two builds and loadouts side by side.
Marked
Track contracts, items, badges, and more.
Rank Calculator
Calculate potential rank.
News
Latest updates and announcements.
Gallery
Community screenshots and media.
Submit Data
Contribute data to the community.
Credits
Contributors, supporters, and acknowledgements.
Tau Ceti IV
Humanity's first interstellar colony. A planet orbiting the star Tau Ceti, 11.9 light-years from Earth.
Description
Tau Ceti IV is the fourth planet of the Tau Ceti system, chosen as the site of humanity's first permanent interstellar colony. The colony was established by the UESC Marathon and numbered over one hundred thousand souls by 2794. The planet is where the first game's ground combat takes place as the Pfhor systematically assault and enslave the colony population. Its fate after the Pfhor invasion is left ambiguous.
Data
- Star: Tau Ceti (G-type, 11.9 ly from Earth)
- Colony population: ~100,000 (2794)
- Status: Attacked and occupied by Pfhor (2794)
- First colony: Humanity's first interstellar settlement
Appears In
8 entriesThe Marathon Project
The UESC buys Deimos and begins converting it into the Marathon.
Durandal's Awakening
Durandal's rampancy deepens during the long voyage.
Arrival and Colony
The Marathon reaches Tau Ceti IV and the colony is founded.
Marathon
The Pfhor launch a surprise assault on Tau Ceti.
The Truth About Durandal
Durandal is revealed to be manipulating events and allies.
The Colony Goes Dark
The Pfhor return and annihilate the Marathon and the colony, severing UESC contact with Tau Ceti.
The Fate of Three Minds
Durandal merged with Thoth, while Tycho remains trapped in anger and is destroyed. Leela's post-capture chain of sales leads to her rampancy.
Corporations Move In
A signal draws major corporations to Tau Ceti to salvage, investigate, and fight by proxy through Runner shells.
TAU CETI IV
Constructed by [ H4L0FW1NT3R]
CA562460
CIRCUMSTANCES ARE CYCLICAL
(hTe namhu lhwee is a otahprem orf ';pSth Teh thevnlEe aCnl liwl un.rrte)
© 2026 AndrewDavidJ. All Rights Reserved. Not affiliated with Bungie or Marathon.
Marathon is the property of Bungie. Bungie and Marathon are registered trademarks of Bungie inc.
Credits