AETHUS Mysterious Eggs: Locations, Trudy Quest, and Recipes
Mysterious eggs in AETHUS spawn in circular rock nests throughout the cavern biomes. Gathering ten eggs fulfills Trudy's corporate contract at the trade node for 3,000 credits, while extra eggs cook into Korvo-Spiced Eggs at the cooking station.

Mysterious eggs in AETHUS spawn in circular rock nests throughout the cavern biomes. Gathering ten eggs fulfills Trudy's corporate contract at the trade node for 3,000 credits, while extra eggs cook into Korvo-Spiced Eggs at the cooking station.
Where to Find Mysterious Eggs
Mysterious eggs sit inside round, stony nest clusters scattered across the underground cavern biomes. They appear in the Outer Caverns, the Clifftop Hub area, and the paths leading down toward the crater floor.
Specific nest locations include:
- Along the rock perimeter walls of the Clifftop Hub, tucked behind abandoned containers.
- Directly behind the abandoned forward habitat facility in the upper cave system.
- Along the lower ledges beneath the stone bridges near the crater drop-off.
- Near geothermal spring pools and rock outcroppings in the Outer Caverns.
Scanning with the suit ping highlights interactable objects in the dark, outlining the egg clusters against the stone floor. Cavern resources reset when earthquakes strike the claim, which occur every three to four in-game days or immediately after detonating a Quakemaker charge. These tremors replenish nodes and respawn uncollected nest items throughout the cave network. Carrying adequate oxygen supplies or unlocking early suit upgrades prevents suffocation while searching the darker branches of the cave.
Trudy's Delivery Contract: The Menagerie
After constructing the trade node at your surface outpost and linking it to the Astral Resource Corporation network, Maeve's former manager Trudy contacts the terminal. Trudy acts as your corporate contracting representative, issuing delivery requests for external clients.
Her initial assignment requires ten mysterious eggs for a client named Mr. Lantic, who collects the specimens for an off-world menagerie. Interacting with the trade node terminal lets you deposit the eggs directly from your inventory. Submitting all ten items completes the objective and awards 3,000 ARC credits.
Completing this delivery advances your standing in the Resource Acquisition Partnership program. Finishing this initial task allows Trudy to issue follow-up supply requests later in the story, including deliveries for meteorite materials, microcircuits, and ancient bones.
Egg Utilization Options
Players face choices on whether to turn in eggs immediately, hold them in base storage, or process them into sustenance.
| Option | Practical Application | Requirement |
|---|---|---|
| Trade Node Delivery | Awards 3,000 credits and unlocks subsequent corporate requests | 10 Mysterious Eggs deposited at the trade terminal |
| Cooking Station Meals | Restores stamina, hydration, and nutrition when converted to Korvo-Spiced Eggs | 2 Mysterious Eggs and 3 Korvo Leaves per batch |
| Outpost Storage | Preserves excess stock for later recipes after finishing Trudy's assignment | Small, Medium, or Large Crates placed at base |
Holding at least ten eggs in storage until Trudy's objective appears ensures immediate credit payout without delaying claim upgrades.
Cooking Recipes and Nutritional Value
Consuming mysterious eggs in raw form is not recommended. Once the initial batch of ten eggs has been turned in to ARC, excess eggs collected from cavern runs can be processed into cooked meals.
At the cooking station, players can combine eggs with cavern flora:
- Korvo-Spiced Eggs: 2 Mysterious Eggs + 3 Korvo Leaves
Korvo plants grow alongside the geothermal water pools in the lower caverns. Cooking harvested eggs provides a renewable food source that supports stamina recovery during long subterranean exploration runs. Combining egg dishes with mushroom soups from your outpost kitchen offers dependable food management, allowing you to venture deeper into late-game sectors without running out of energy. Additional station blueprints and refining formulas can be reviewed in the master list of outpost recipes.
Seasonal Easter Eggs Distinction
AETHUS contains two separate egg mechanics that should not be confused. The standard mysterious egg is a permanent harvestable resource used for Trudy's delivery contract and culinary recipes.
By contrast, the Spring Fling scavenger hunt is a three-part seasonal event activated after completing tasks in Facility Iota. In that event, the companion drone Roland provides riddle clues leading to hidden decorative Easter eggs hidden around geothermal pools and skeletal remains. Those event eggs reward cosmetic base blueprints, including an egg basket, and cannot be turned in to Trudy or cooked at the food prep table.
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