[ARC Raiders]Completely conquer all 5 Blue Gate key rooms! Thorough explanation of map coordinates, key acquisition method, high reward list, solo/team optimal route[Ark Raiders]

ARC Raiders is a tense extraction shooter that combines PvPvE elements. Among them, “Blue Gate'' is characterized by a complex structure in which underground facilities and above-ground villages are intertwined. Weapon cases appear in over 20 locations, which is extremely abundant. It is a map with a large number of players and a high level of difficulty for intermediate to advanced players, but it is extremely efficient in making money and is perfect for aiming for augment blueprints and rare materials.

The most important part of this map is the “key room”. A key room is a special room that can be unlocked using a specific key item. Epic items will appear at a higher probability than at regular exploration spots. There are a total of 5 key rooms in Blue Gate. There are 3 locations above ground and 2 locations underground. By efficiently going through these key rooms, you can fill up your backpack in one raid. It is possible to escape safely.

In this article, we will explain all 5 key rooms in Blue Gate with detailed map coordinates. Furthermore, it covers how to obtain each key, the reward list after unlocking, tips for solo players, how to work together as a team, and the best overall exploration route. Be sure to use this as a reference for both beginners and advanced users.

The overall picture of Blue Gate and the importance of the key room

Blue Gate has a road running through the center of the map. The layout has a vast underground passageway underneath. POIs such as villages and Piligrim Peak are scattered on the ground. The basement can be accessed through manholes, hatches, and ziplines. The appearance rate of arks (enemies) is standard, but small jumping arks are troublesome underground. Also, since the player encounter rate is high, it is essential to have footstep silencer equipment and adrenaline injections.

The value of a key room is tremendous. In normal cabinet exploration, common to rare items are the main items, but in the key room, epic blueprints and security chests will appear at certain levels. The key itself can be obtained from a random drop at the start of a round, by defeating an enemy, or from a cabinet. You may have multiple items in one raid. Escape without consuming the key will be a waste, so use it aggressively.

Simple map of all 5 key rooms (text notation)

Below is a coordinate table based on the Blue Gate map. (Assume map north is up and left is west)

key room name	Coordinates (rough)	aboveground/underground	Recommended access method
① Village key	Western village (NW)	above ground	Direct drop
② Communication tower key	Piligrim Peak (NE)	underground	zip line
③Underground key	Near the ruined house (center west)	underground	ground hatch
④Patrol car key	Traffic tunnel (central underground)	underground	manhole intrusion
⑤Key to confiscated goods storage room	Reinforced reception east (east basement)	underground	descent zip line

Based on this, we will explain the details one by one.

①[Ground/Village Key]Blue Gate Village Key Room Strategy

How to get the key

Village keys can be obtained from cabinets and desk drawers inside the Blue Gate, as well as drops from Blue Gate soldiers and arks. Occurrence rate is moderate. It often falls when exploring the village at the beginning of the raid.

Location and unlocking procedure

1. Descend to the village area on the west side of the map. Please aim for the village in the northwest.
2. On the west side of the village, there is a private house with a large, rugged lock. The entrance is wide and conspicuous.
3. Approach the door and select the “Blue Gate Village Key” from your inventory and use it.
4. After entering the room, thoroughly search the shelves and drawers. There is a high possibility that enemies will approach when you hear the door open, so be sure to keep an eye on your back.

Image reference: The door features a large red lock. Inside, there are multiple lockers in a small room.

Expected reward list

• Augment blueprint (MK2-MK3)
• Electronic parts/high-grade materials
• Weapon parts (scope, grip)
• medical bag grenade

Risk level and tips

Danger level: ★★☆☆☆ (Easy to access on the ground, but the unlocking sound will trigger PvP)

• Solo: After opening the lock, immediately fish and escape on the zipline.
• Team: One person watches, the rest explores.
• Avoid mistakes: Clear the surrounding area before arriving at the village.

②[Around the ground/Pirigrim Peak]Conquer the communication tower key room

How to get the key

Communication tower keys are also mostly random drops. There is a high probability of finding it in the cabinets around Piligrim Peak.

Location and unlocking procedure

1. Go to Piligrim Peak in the northeast of the map. Aim for the communication tower.
2. Take the zip line from the top of the tower or descend underground from the main entrance.
3. There is a locked door on the basement floor with the inscription “Communication Tower Washin'' written on it.It is easy to see inside from the outside.
4. After using the key, search the communication equipment and locker inside.

Image reference: The underground door is made of metal and is located at the base of the tower.

Expected reward list

• intelligence items
• Rare materials (titanium alloy, etc.)
• Weapon case (lots of sniper blueprints)
• Tools (blasting tools)

Risk level and tips

Danger level: ★★★☆☆ (Many enemy ambushes due to high access)

• Solo: Night raids are recommended and take advantage of poor visibility.
• Team: Win the zipline contest.
• Advanced Tips: Infiltrate after scouting from the top of the tower.

③[Above ground/near the ruined house]Underground key room strategy

How to get the key

The basement key is obtained from the cabinets around the ruined house and on the central road. It also rarely appears as a quest reward.

Location and unlocking procedure

1. Move to a group of dilapidated houses in the center west.
2. Look for a shelter hatch in the ground. The landmark is the metal lid.
3. Unlock it with the key and descend underground using the ladder.
4. There are quest items such as a magnetic accelerator inside.

Expected reward list

• Magnetic accelerator (quest required)
• weapon case
• luxury medical products
• blueprint fragment

Risk level and tips

Danger level: ★★☆☆☆ (High stealth)

• Solo: Clearing around the hatch is required.
• Team: One person will guard the ladder.

④[Underground]Patrol car key room strategy

How to get the key

Patrol car keys can be obtained from enemy drops in traffic tunnels or from cabinets around the vehicle. It is medium rare.

Location and unlocking procedure

1. Enter the underground tunnel through the central manhole.
2. Proceed through the traffic tunnel and look for a heavy-duty armored patrol car (large black vehicle).
3. Use the key on the rear door of the vehicle. The interior is small, but there are many treasure chests.

Expected reward list

• security locker
• epic weapon parts
• cash exchange material

Risk level and tips

Danger level: ★★★★☆ (Underground PvP fierce battle)

• Solo: Uses light and alerts the sound.
• Team: Control the area around the vehicle.

⑤[Underground]Confiscated goods storage room key room capture

How to get the key

There is a high probability of finding confiscated item keys in the basement on the east side or around the reinforced reception desk. This is an epic drop.

Location and unlocking procedure

1. Use the zipline descending from the reinforced reception (north side).
2. Go to the east side of the basement and look for a storage room door that is made of glass so you can see inside.
3. After using the key, collect multiple chests.

Expected reward list

• Security chest x3-5
• Rare Blueprint (Survivor Augment)
• high-value exchange items

Risk level and tips

Danger level: ★★★★★ (Toughest battle area)

• Solo: Adrenaline is essential.
• Team: Full team recommended.

Blue Gate optimal search route (all around the key room)

1. Nishimura (①) → Central hatch (③④) → East storage room (⑤) → Northeast communication tower (②) → Escape.
It takes 15 minutes and you can expect to earn more than 500,000 yen.

Detailed steps:

• Start: Clear the village key room.
• Underground migration: ③④ in succession at the hatch.
• Toshin: ⑤ makes a big catch.
• Kitakami: ② Tighten.
• Escape: Select cliff hatch (less ambushes).

Weapon case combination route and gimmick

Weapon cases 20+ locations: Central track, bottom of north stairs, underground branch, top of east tower, southeast blast door. Incorporate it into the key room route to double the efficiency.

Gimmick: Hidden switches generate high rare boxes, beehive events, etc.

Beginner advice

• Night raid selection: Reduces PvP.
• Footstep muffling equipment is required.
• Pick up the keys first.

Advanced Tips

• Combined use with breakthrough room: Specializes in blueprints.
• Trap avoidance: Use sound hints.
• Team Callout: Share your location.

summary

If you master all 5 key rooms of Blue Gate, you can become the king of money making. Move seamlessly from above ground to below ground. Maximize your rewards. Always check for updates for potential changes. Follow this guide and enjoy rich raids.