BRIEF SUMMARY
Codex Lore: SURVEY DRONE CARTRIDGE
OBJECTIVES
NO TACTICAL OBJECTIVES ASSIGNED TO THIS NODE.
ANALYZING… FILE TYPE: Scientific Summary PERIOD: Pre-Expedition TOPIC: Exoplanet Colony Candidates SUMMARY: Excerpts from a study on potential exoplanet sites, with Tau Ceti IV emerging as the best possible candidate due to limited terraforming requirements. Megacorps supplying the mission had significant influence over the choice of Tau Ceti IV. =================================================================== Candidate: Enceladus Description: Sixth largest moon of Saturn within the Sol system CANDIDATE DECLINED. Despite relative proximity to Mars and an abundant subsurface ocean, Enceladus's trace atmosphere cannot support human agriculture without centuries of terraforming or sealed aquaculture environments. A NuCaloric Agriculture panel asserts that neither option is practical, and Traxus logistic specialists concur. Candidate: Proxima Centauri b Description: Tidally locked planet in the habitable zone of the red dwarf Proxima Centauri, 4.2 LY from Sol CANDIDATE DECLINED. Habitability criteria are favorable in a narrow band. Nascent terraforming technologies are insufficient to expand outside this zone. Agriculture in a red dwarf star system is uncertain; all plants from Sol evolved in a G-type yellow dwarf system. Potential stakeholders assert no confidence in this candidate's long-term profitability. Candidate: Tau Ceti IV Description: Terrestrial planet in the habitable zone of the G-class star Tau Ceti, 12 LY from Sol CANDIDATE APPROVED as mission target. Habitability criteria are favorable in at least one major landmass. Atmospheric analysis confirms abundant carbon-based plant life capable of sustaining fauna. This candidate likely requires no long-term terraforming to be agriculturally self-sustaining. A joint panel of UESC physicists[1] and NuCaloric agronomists strongly assert that a more compatible target is unlikely to exist. =================================================================== [1] See ADDENDUM 1.7.7.1 for further details about likely presence of [REDACTED] in the Tau Ceti system. All further discussion of [REDACTED] must be formally submitted to the Mission Special Projects Committee. =================================================================== TYPE: TEXT [X]; AUDIO [ ]
About Codex in Marathon
The Codex is one of the most important progression systems in Marathon because it keeps track of the things that stay with your account over time. It covers achievements, collections, lore entries, cosmetics, titles, and other rewards tied to what you do in the game, and you can check it outside of your runs.
What makes the Codex stand out is that it is not just a lore menu. Marathon connects it to contracts, narrative items, and other in-game milestones, so the more you explore and complete, the more entries and rewards you unlock. It also carries over between seasons, even when things like gear, faction progression, contract progression, and player level reset.
FREQUENTLY ASKED QUESTIONS
The Codex is Marathon’s long-term progression hub. It tracks things like achievements, lore-related discoveries, cosmetics, titles, and other milestone-based rewards, and it can be viewed outside of runs.
The Codex keeps a record of what you have completed and found in Marathon. That includes progress from contracts, narrative items, and other achievements, along with the rewards tied to those goals.
Yes. Codex progression carries over between seasons, which makes it one of Marathon’s main long-term systems even when seasonal resets affect gear and other progression.
The Codex includes free cosmetics and other unlocks tied to objectives. You can get rewards like weapon styles, stickers, profile emblems, profile backgrounds, titles, runner shell cosmetics, and loadout packages.
Codex entries are unlocked by doing things like completing contracts, finding narrative items, completing objectives, and hitting other in-game milestones. As you keep playing, more entries and rewards open up.
The Marathon Codex page helps you understand what the Codex is, how it works, what kind of rewards it offers, and why it matters for long-term progression. It is also a useful place to get a simple view of the game’s achievement and reward tracking system.