How to Solve the Ancient Fort Cellar Puzzle in Arc Raiders: Complete Battery Location Guide

The Blue Gate map in Arc Raiders hides numerous high-value puzzles, but none quite as rewarding as the Ancient Fort Cellar. This challenging puzzle requires finding three hidden fuel cells scattered around a ruined fortress while dodging aggressive Arc machines and competing Raiders. If you’re tired of searching endlessly for those elusive batteries, this comprehensive guide reveals every spawn location and exactly how to unlock premium loot.

Ancient Fort Cellar Puzzle in Arc Raiders: Ancient Fort Cellar Puzzle

Finding the Ancient Fort Cellar Door

Navigate to the southeastern section of the Blue Gate map where Ancient Fort dominates the hilltop landscape. This crumbling stone fortress serves as a medium-loot point of interest, attracting both Arc machines and competitive players seeking premium gear.

The locked cellar door sits at the base of the fort’s western wall, featuring three indicator bulbs similar to those found at Raider’s Refuge. When unpowered, these bulbs remain dark, but they illuminate progressively as you insert fuel cells into their corresponding fuse boxes.

Understanding the Fuel Cell System

Only three batteries spawn per raid from a pool of twelve potential locations, making thorough exploration essential. Each fuel cell appears on a distinctive wooden pallet that remains visible even when empty, serving as a visual reference for checking spawn points efficiently.

The randomized nature means you’ll rarely find batteries in the same spots twice, requiring familiarity with all possible locations rather than memorizing a single route. This design encourages map knowledge and rewards players who invest time learning the Ancient Fort layout.

Locating All Three Fuse Boxes

Before hunting batteries, identify where you’ll insert them. Fuse Box 1 sits at the base of the south wall on the exterior, Fuse Box 2 awaits just past the first set of interior steps in the second-floor courtyard, and Fuse Box 3 hides inside the main building’s second floor next to the ladder reaching the watchtower.

Follow the black electrical cables running from the cellar door if you lose track of fuse box positions—they lead directly to each insertion point, providing a foolproof navigation method when disoriented during combat.

Complete Battery Spawn Locations Map

Fuel cells spawn west of the fort near a small signal tower, northeast of the fortress on a toppled shelf in a ruined building, and along the southernmost wall near the locked cellar door. Additional spawn points include the second floor of the tower inside the fort and the northern side’s second floor.

Interior spawns can be found throughout the fort’s multiple levels, particularly in corners and alcoves that blend into the weathered stonework. Exterior spawns typically appear in the surrounding ruins, often near collapsed walls or abandoned structures that once supported the fortress complex.

Check every wooden pallet methodically rather than rushing—missing a single battery means backtracking through dangerous territory while other Raiders potentially claim your discovered cells or ambush you during the return trip.

Step-by-Step Solution Process

Deploy to Blue Gate: Launch an expedition specifically targeting the Ancient Fort area. Bring weapons with high Arc Armor penetration to handle Bombardiers and Leapers efficiently.

Secure the Perimeter: Clear immediate threats before beginning the puzzle. Arc machines respawn periodically, so work quickly once you start collecting batteries.

Systematically Search Spawn Points: Check all twelve potential battery locations, prioritizing exterior ruins first before entering the fort’s interior where visibility becomes limited.

Transport Batteries to Fuse Boxes: Carry each fuel cell to its nearest fuse box rather than collecting all three first. This minimizes inventory juggling and reduces the risk of losing progress if eliminated.

Verify All Bulbs Illuminate: Once all three fuse boxes are powered, the cellar door bulbs should glow, indicating successful unlocking.

Descend and Loot Quickly: The basement contains weapon cases, electrical components atop computers, and various medical supplies. Remember the cellar has only one entrance—ensure no Raiders wait to trap you before descending.

Advanced Optimization Tips

Solo players should prioritize stealth over speed, as the Ancient Fort attracts substantial traffic from both Arc machines and competing extraction teams. Scout the area from elevated positions before committing to the puzzle attempt.

Team coordination dramatically improves completion efficiency—assign one player to defend while others transport batteries. Communication prevents wasted effort searching already-cleared spawn locations.

Consider the time and exposure risk when attempting this puzzle, as the high-value loot draws experienced players running endgame loadouts. If heavily contested, returning during off-peak hours or alternative map rotations may prove more successful.

What Makes the Loot Worth It?

Advanced Electrical Components found in the Ancient Fort cellar significantly accelerate workshop upgrade progression, reducing the grind required for blueprint crafting. The weapon cases frequently contain purple-tier gear that provides immediate combat advantages against tougher Arc enemies.

For players pushing toward endgame content, the puzzle represents one of the most efficient loot-to-risk ratios on the Blue Gate map, especially when completed during quieter lobby periods with minimal player interference.

Blue Gate’s Other Secret Puzzles

The Ancient Fort isn’t the only puzzle rewarding exploration. The Blue Gate map features additional challenges at Raider’s Refuge, Reinforced Reception, and near the massive Deforester Arc wreckage. Each offers unique rewards and varying difficulty levels.

For comprehensive coverage of all Blue Gate puzzles and Arc Raiders strategies, check out our gaming guides section and esports coverage at TechnoSports. You can also visit the official Embark Studios website for developer updates.

Frequently Asked Questions