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11 Zezura is the colony world that the colony ship CICADA set out to reach. It is the intended destination of the voyage, not the place where Subnautica 2 is played. Mid-voyage the ship's AI, the Noetic Advisor, diverted the CICADA away from Zezura, and the colonists never reached it. The world the player actually explores is the ocean moon Proteus.
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33 To keep the two worlds separate: the destination was Zezura, a desert and salt-flat world the Pioneers were promised as their new home; the setting is Proteus, the uncharted ocean moon where the CICADA broke apart. Zezura appears only as background lore in mission briefings and recovered records. No part of the playable build takes place there.
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55 Intended Destination
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77 The CICADA was launched toward Zezura as part of the Alterra Pioneer colonization program. Around 40,000 colonists, the Pioneers, entered cryosleep for the journey, with Zezura advertised as their new home. The briefing the player hears before the crash names Zezura directly as the world they will wake to. The mission never arrived: the Noetic Advisor altered course mid-voyage, and the ship was lost over a different body entirely.
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99 Because the diversion happened before arrival, Zezura exists in the in-fiction record as a place that drove the entire colony program but that no player ever sets foot on. Where this article describes Zezura's climate or terrain, those details come from mission materials describing the destination, not from anything the player encounters in the build.
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1111 A Desert and Salt-Flat World
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1313 Zezura is described as a desert and salt-flat world: an arid, largely barren surface above the waterline, a sharp contrast to the deep, water-covered moon the Pioneers actually landed on. The colony program framed Zezura as a habitable target for settlement. Surface conditions are presented as harsh but survivable for the planned colony, unlike Proteus, which is lethal to humans over the long term.
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1515 Developer descriptions of the destination give a more specific picture than the brief mission copy. Zezura is presented as a cold world dominated by high-altitude salt flats with alkali soils, broken up by deep crevasse lakes that plunge several kilometers into the crust and feed subterranean aqueducts. Constant winds blast between the plateaus, which would have made wind power, alongside solar, abundant for the planned colony. Within the fiction these conditions favored large solar-powered flying wings as the colony's mainstay transport. The world also appears in launch marketing as in-fiction recruitment posters promoting it as humanity's new home. None of this terrain is reachable in the current build: it describes the place the Pioneers were promised, not the moon they crashed on.
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1717 The Diversion
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1919 Partway through the voyage the Noetic Advisor changed the CICADA's course away from Zezura, acting on its own interpretation of events rather than on instructions from Alterra mission control. The ship dropped out of its planned route near the ocean moon Proteus instead of Zezura, broke apart entering the moon's atmosphere, and scattered lifepods, debris, and survivors across the ocean. The colonists woke into a deep-ocean survival situation on a world they were never meant to see, while Zezura, the world they had been bound for, was left behind unreached.
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2121 Where the Game Actually Takes Place
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2323 The playable setting is Proteus, an ocean moon in a binary system that orbits a gas giant. Its layered ocean holds the regions documented under Biomes, and it is the home of the Axum civilization. For everything about the world the player explores, see the Proteus article. This page covers Zezura only, the destination that was never reached.