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The S’phticide Cryo Skin is one of the few cosmetics in Marathon that can’t be purchased, farmed passively, or unlocked through standard contract progression. It exists specifically as a Cryo Archive extraction reward — a marker that you’ve cleared the hardest content in the current season and got out alive. The skin applies to any of the six available Shells and carries forward through seasonal resets as a permanent cosmetic unlock.
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Reward |
Details |
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S’phticide Cryo Skin |
Reactive Shell skin — Cryo Archive exclusive, applies to selected Shell |
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Available Shells |
Vandal, Triage, Destroyer, Assassin, Thief, Recon |
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Compiler Boss Kill |
Endgame boss cleared — AI Subroutines and Compiler Ganglion boss drop included |
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Cryo Archive Extraction |
Successful exit from the hardest map in the game — Security Clearance Level 3+ required |
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Cryo Contract (optional) |
One CyberAcme weekly contract completed, high-rarity item rewards collected |
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Season XP |
Level progress accumulated across the Cryo Archive session |
Buy Marathon S’phticide Cryo Skin Boost and wear the cosmetic that only comes from clearing the endgame — on the Shell of your choice.
The S’phticide Cryo Skin is tied to the Compiler kill condition in Cryo Archive — it’s the reward for completing what Bungie designed as the map’s primary challenge. The Compiler is the hardest AI encounter in the current game, referenced across the Codex as the entity the UESC itself fears. Killing it and extracting in the same run is the full completion condition, not just one or the other. Players who die after the kill or fail to extract don’t receive the skin regardless of boss completion.
The skin applies to one Shell per order — whichever you select at checkout. The six options are Vandal, Triage, Destroyer, Assassin, Thief, and Recon. If you want the skin on multiple Shells, each requires a separate Compiler kill and extraction, which can be ordered as additional runs. Your manager can coordinate back-to-back sessions within the same weekend window if you’re targeting more than one Shell.
The S’phticide Cryo Skin is a permanent cosmetic unlock — it carries forward through seasonal resets and is not tied to the current season’s progression. Marathon resets gear, credits, faction rank, and season-specific unlocks at the end of each cycle, but cosmetics including Shell skins persist across every season once obtained. The skin stays on your account and remains equippable in every future season regardless of when you earned it.