Marathon C.04

Marathon C.04 is a prestige-rarity key associated with the UESC Marathon ship and the Cryo Archive zone, with a confirmed sell value of 2,000 credits and one of the earliest C-series keys to be publicly reported by the community. C.04 was notably discovered by a player on a runner during extraction at Dire Marsh, which is how its metadata first became known: location referencing uesc.marathon, zone referencing cryo.archive, and status indicating access offline with decryption pending. It is one of four C-series keys confirmed to exist in the game alongside C.01, C.03, and C.06, and its discovery helped accelerate community understanding of the broader ARG puzzle framework tied to the Cryo Archive. Like the other C-series entries, C.04 represents a restricted access credential for a section of the UESC Marathon ship, with its precise unlock function remaining part of the unresolved Cryo Archive mystery. Players encountering C.04 in a raid should extract immediately, as its high credit value and ARG significance make it one of the most important items to safeguard.