The Interstellar Navigation quest funnels you through the Warehouse map and back to Ground Zero, but it hides the critical steps behind vague log text. You’ll need two keys, a specific house near the ravine, and a safe in Road Camp to wrap it up cleanly.
Quest availability and requirements
Interstellar Navigation appears in the later stages of the Warehouse map questline. Completing it requires two keys:
- House Key
- Warehouse Safe Key
Both keys originate in the Warehouse area. The House Key is tied to a small house near the ravine. The Warehouse Safe Key is also found in the Warehouse zone and is used later in Ground Zero.
Fast walkthrough (the exact route to completion)
| Step | Location | Required | Action |
|---|---|---|---|
| 1. Start the objective | Warehouse (quest log) | — | Track Interstellar Navigation in your quest log, then travel to Warehouse. |
| 2. Unlock the ravine house | Warehouse, small house near the ravine | House Key | Use the House Key to enter; interact with the objective inside to advance the quest. |
| 3. Secure the safe key | Warehouse zone | — | Find the Warehouse Safe Key in the Warehouse area. Spawns can vary. |
| 4. Open the safe | Ground Zero, Road Camp | Warehouse Safe Key | Head to the building where you previously fought Pato Chapo and unlock the safe to complete the quest. |
Where to find the House Key and ravine house
Make for the small, locked house positioned near the ravine on the Warehouse map. The House Key is obtained in the Warehouse zone, commonly associated with areas patrolled by scavengers. Once you have it, return to the ravine house, unlock the door, and interact with the objective inside. This step is what signals the game that you’re ready for the safe portion later.
Where to find and use the Warehouse Safe Key
The Warehouse Safe Key is also located somewhere within the Warehouse area. Spawns can vary from run to run; players report consistent finds around cabins near the ravine and at East Road Camp. With the key in hand, leave Warehouse for Ground Zero.
In Ground Zero, travel to Road Camp. Enter the same building where the Pato Chapo encounter took place earlier in the storyline. The safe sits inside that structure; use the Warehouse Safe Key on it to finish Interstellar Navigation.

Answers to common questions
- Where is the “Interstellar Navigation” item? It’s inside the locked ravine house in Warehouse.
- Do I need both keys? Yes. The House Key unlocks the ravine house; the Warehouse Safe Key opens the Road Camp safe.
- Where exactly is the safe? Ground Zero → Road Camp, in the same building tied to the earlier Pato Chapo fight.
- Can I open the safe early? No. The safe interaction requires that you’ve triggered the objective at the ravine house first.
Once the Road Camp safe is open, the quest updates and you can move on to the next mission chain. If you’re struggling to find spawns, run Warehouse with empty pockets and prioritize the ravine-side cabins and the East Road Camp houses before extracting with both keys.