
In ARC Raiders, the citizens of Speranza work together to keep their underground city safe and stocked with supplies, but the list of things that need to be done only seems to grow longer. Celeste, the friendly trader that offers resources in exchange for assorted seeds, needs your help to convince the stubborn gun merchant Tian Wen to participate in community projects.
Tian Wen has been complaining about the quality of items on the market as of late, so Celeste is recruiting you to scout out some reliable loot locations. In this guide, I’ll be walking you through how to complete Celeste’s greasing her palms quest, which requires you to visit locations in The Buried City, Spaceport, and Dam Battlegrounds maps.
Greasing Her Palms Quest Guide
This quest will grant you a Dam Surveillance Key to open the locked door on the Dam Battlegrounds map, which is the first location we’ll be going to—so make sure you stash the key in your safe pocket for the journey.
Once you enter the Dam Battlegrounds map, locate the Water Treatment Control Building and make your way to it. There’s an entrance on the western side of the building that leads directly to the locked room.
This entrance is highlighted by the arrow in the picture below.
Where To Find The Locked Room In The Dam Battlegrounds Water Treatment Control Building
Depending on where you enter the building from, it can be tricky to locate the room, but this entrance is quick and easy. Go up one flight of stairs and enter the door on your right, pictured below.
Once you’re inside, the locked door is straight ahead (seen below), use the Dam Surveillance Key to enter the room. This will complete this part of the quest.
Head back to Speranza and set your destination to The Buried City.
Where To Find The Barricaded Room In The Buried City Space Travel Building
In the Buried City segment of this quest, you’ll need to reach the sixth floor of the Space Travel Building, and there’s a really quick way to get this one done. In the alleyway between the Research Building and the Space Travel Building, there is a zipline seen above, and highlighted on the map by the arrow.
Take the zipline all the way to the top, and you’ll see the doorway pictured below. Go through the doorway and take a right, the barricaded area will be right there.
Breach the door and walk through. This is all you have to do to complete this part of the quest.
Now head back to Speranza and switch to the Spaceport map.
Where To Find The Rocket Thrusters In Spaceport
Once you’re on the Spaceport map, locate the Rocket Assembly Building in the northeastern part of the map, seen above.
The rocket thrusters you’re looking for are roughly 100 meters south of the Rocket Assembly Building. You can see their exact location highlighted by the arrow in the picture above.
Climb inside the rocket thrusters seen below to complete this part of the quest.
With all three looting locations scouted out, all that’s left to do is return to Celeste and collect your rewards, which include a blueprint for lure grenades, and some useful resources.
- Security Camera Installation – indoor/outdoor IP CCTV systems & video analytics
- Access Control Installation – key card, fob, biometric & cloud‑based door entry
- Business Security Systems – integrated alarms, surveillance & access control
- Structured Cabling Services – voice, data & fiber infrastructure for new or existing builds
- Video Monitoring Services – 24/7 remote surveillance and analytics monitoring
Author: 360 Technology Group




















