BRIEF SUMMARY
Codex Lore: PARADIGM SHIFT 4/5
OBJECTIVES
NO TACTICAL OBJECTIVES ASSIGNED TO THIS NODE.
PARADIGM SHIFT 4/5
ANALYZING… FILE TYPE: Unknown, metadata corruption detected PERIOD: Unknown, metadata corruption detected TOPIC: Contagion Research Fragments SUMMARY: Limited excerpts of colony era contagion research from the remains of Gabriel, the colony's medical AI. The extraction of the "anomalous sample" appears to have caused irreparable damage to Gabriel's neural architecture. =================================================================== Subroutine: Bulk analysis of necrotic intestinal tissue Sample size: 26 samples from 23 decedents. Population: All decedents were between the ages of 18-65, patients of the high security isolation ward. Samples dated from //ERR: ATEMPORAL CORRUPTION// Cycle #1: novel exception error! Cycle aborted. Cycle #2: novel exception error! Cycle aborted. Cycle #42: potential isolation of novel exception. Cycle progressing. Cycle #616: isolation pending… Cycle #9000: isolation pending… Cycle #77777: isolation successful. Cycle #777778: Authoring containment procedures for [TEMP DESIGNATION: ANOMALOUS SAMPLE] Cycle #818181: //ERR: SIGNAL BREACH// Cyc//000000 01010011 01000101 01000101 01001110 =================================================================== 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.