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Players who have visited The Blue Gate map have probably come across a ruined fortress called the Ancient Fortress. ARC Raiders. This desolate remnant of humanity stands atop a hill, and you'll discover a locked cellar door that holds some of the most valuable loot on the map. However, players will need to find three priests scattered around the ancient fortress to unlock the crypt door. This guide will help you find all the fuses and open them in no time.
How to Complete the Ancient Fortress Puzzle in ARC Raiders
Players can find the ancient fortress at: Southern part of the Blue Gate map to ARC Raiders. This area is medium value loot so expect to see a moderate amount of ARC mech activity as well as contact with other raiders in the area. Once you arrive in this area, you will find the locked cellar door of the ancient fortress at the foot of the Western Wall. It has three light bulbs similar to those found in Raider's Refuge.
To open the basement door you will need: Find the three fuses/power cells They are scattered around and inside the fort. The player must pick it up and insert it into the three fuse boxes in the ancient fortress. Here is a breakdown of fuse box locations:
- Fuse box 1: Found outside, at the foot of the southern wall of the ancient fortress.
- Fuse box 2: The first staircase was found in the second floor courtyard inside the fortress.
- Fuse Box 3: Located inside the second floor of the fortress main building, next to the ladder that can lead you up to the top.
All Ancient Fortress Shrines locations in ARC Raiders
there is 10+ locations Around an ancient fortress where fuse cells can spawn. Players can find a wooden pallet in this location, as a fuel cell spawns on top of it. Below is a breakdown of all the fuse/battery locations in the ancient fortress. ARC Raiders.
There may be more spawn locations for Fuse Cells, but the ones mentioned below are some of the most common locations in and around the Ancient Fortress.
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Fuse location image |
Location Description |
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|---|---|---|
|
Annex 1 |
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Let's start by listing the locations of the shrines west of the ancient fortress. ARC Raiders. If you look to the west of the fort, you'll see an abandoned house with pillars inside. |
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new building 2 |
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The next fuse/battery location in the Ancient Fortress is directly across from the southern exterior fuse box. |
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new building 3 |
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Another potential Ancient Fortress fuse/battery location is just to the right of Fuse 2 location, next to the entire vehicle. |
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Fuse 4 |
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Check the area east of the fort. Another fuse can be found inside a broken house structure with a radio antenna and a generator. |
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Annex 5 |
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Next, head to the northeastern edge of the ancient fortress. You can find the location of another fuse of the ancient fortress by looking inside the broken house structure next to the zipline. ARC Raiders. |
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Annex 6 |
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Further northeast, opposite the location of the fifth fuse, you will find another ruined house with a shelf and a couch. Inside you'll find a wooden pallet that can be used to create a fuse cell for an ancient fortress. |
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Fuse 7 |
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From the sixth fuse location, further west along the road you will find a wooden pallet with two traffic cones on it. This is another location where a fuse can spawn. |
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new building 8 |
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Continue west along the path, past fallen pillars and discover another broken down house structure. Outside the house there is a wooden pallet that can be used to create one of the ancient fort's fuse cells. ARC Raiders. |
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fuse 9 |
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Go to the northwestern edge of the ancient fortress and find one of the fuse cells on a wooden pallet. |
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new building 10 |
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Once inside the ancient fortress, take the first set of stairs to the right and you will find yourself in a room with a hole in the ceiling. Near the locker is a wooden pallet that can spawn one of the power cells/fuses. |
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Annex 11 |
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Head to the top of the ARC Raiders' Ancient Fortress using the ladder near the third fuse box to find a wooden pallet next to the large antenna. This can also spawn a fuse to complete the Ancient Fortress puzzle. |
Once you have found all three fuse cells, you can insert them into the three fuse boxes to open the ancient fortress cellar door. ARC Raiders Complete the puzzle. There are several loot areas such as weapon cases and drawers, cabinets, and metal panels that can be used to obtain high-value loot.
Finish your loot quickly and move to the nearest exit to avoid being attacked by enemy players. To be on the safer side, you should keep your most valuable items in safe pockets so they can be automatically extracted if an intruder is stunned. ARC Raiders.
- released
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October 30, 2025
- ESRB
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Youth/Violence, Blood
