Greenhouse Operations Key

The Greenhouse Operations Key is a Dire Marsh zone key that unlocks a door inside the Greenhouse POI, specifically on the elevated maintenance catwalk of a distinctive yellow building marked by two blue tanks on its roof. To use the key, runners should enter from the northern side of the building, move past the first door on the left, and interact with the second concealed door partially hidden behind plastic sheeting on the maintenance level. The room behind this door yields standard progression rewards for Dire Marsh including loot caches with equipment, consumables, and salvage. The yellow building with blue tanks serves as an easy visual landmark, making the Greenhouse Operations Key's door one of the more identifiable locked rooms in Dire Marsh once you know what to look for. The key is a random world drop found throughout the zone and can also be secured from a prior run and brought in for a guaranteed room clear.