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ZERO Sievert presents The Rotking Update Face the Rotking. Master the Chemicals. Survive the Zone. This update brings some of the biggest additions yet to ZERO Sievert — new bosses, enemies, factions, perks, and gear — alongside dozens of quality-of-life improvements and fixes. Face off against the Rotking , uncover chemical secrets beneath the Swamp, and encounter a new Industrial Faction with po…