ARC Raiders Week 18 Trials Guide | Clear Every Challenge in One Run and Prepare for Your Third Expedition
Category: ARC Raiders Posted: Mar 03, 2026 Views: 665
Regardless of recent major patches or temporary hotfixes, the weekly trials of ARC Raiders updates have almost never been interrupted, making them the primary source of basic daily rewards for all players, so you shouldn't miss them!
This week's trials are the 18th round since the game's release. Perhaps because the preparation phase for the third expedition has just begun, Week 18 Trials aren't particularly difficult, so the best way to complete them is to create a clear plan and clear them all in one go!
To save you time, we've compiled a list of all Week 18 Trials content and the best completion strategies to help you progress faster once the new expedition begins.

Damage Leapers
Leapers are medium-sized ARC enemies that primarily threaten you with shockwaves and jumps. The best way to defeat them is to avoid their movement tracks and aim for their eyes and leg joints.
This trial requires you to damage Leapers, but if you're not a new player, you can simply enter areas where enemies spawn in large numbers and wreak havoc, as killing Leapers may drop the following loot:
- Leaper Pulse Unit
- ARC Alloy
- Mechanical Components
- Advanced ARC Powercell
- ARC Flex Rubber
- ARC Motion Core
- ARC Performance Steel
We also recommend starting your farming when the large map event spawns on the maps corresponding to the following locations, as this will grant double trial points.
Dam Battlegrounds:
- Southeast of Hydroponic Dome Complex
- Water Treatment Control Elevator
- Red Lakes Balcony
- Lower Red Lakes Area
Buried City:
- Marano Park
- Spaceport:
- South of Launch Towers
Blue Gate:
- Barren Clearing
- Ruined Homestead
Loot the bird's nests
This trial requires waiting for Bird City map condition to spawn on Buried City map before you can begin. Compared to other map conditions, Bird City isn't particularly dangerous or rewarding; its main appeal lies in its fun.
To find more bird nests during the event, you can use the ziplines above various buildings to traverse the city faster and then loot near the chimneys. However, you need to be constantly aware of patrolling aerial enemies that may approach.
Besides bird nests, you might find other interesting items during this process, but most are not very useful in combat, so you can sell them for coins.
Damage Spotters
This mission is similar to the first one, the only difference being the enemy type. Spotters, as flying ARC bots, won't attack you directly. Instead, they will use lasers to aim and locate you, allowing Bombardier to shoot you down.
The tricky part about Spotters is that if you don't kill Bombardier, Spotters will respawn in pairs after being destroyed. If you just want to complete the trial faster, you can escape immediately after killing enough Spotters.
This enemy type's weakness lies in its thrusters. Defeating them will also drop the following items:
- ARC Powercell
- ARC Alloy
- Spotter Relay
- ARC Synthetic Resin
- ARC Thermo Lining
- Sensors
Spotters can spawn anywhere, but to improve your trial completion efficiency, keep an eye out for them while looting nests in Bird City and eliminate some.
Open ARC Probes
ARC Probes are non-offensive machines used by ARC enemies to scan and collect Earth's resources. Opening their panels will yield loot such as Arc Alloy, Circuitry, and Motion Cores.
These machines continuously emit black smoke and beeping sounds as markers, making them easier to find. Additionally, ARC Probes will spawn more frequently when a Prospecting Probes event occurs on the map.
The map most likely to spawn this event is Blue Gate; Dam Battlegrounds and Buried City are also good choices. Once inside the map, prioritize higher ground to quickly spot the spawn points of ARC Probes.
The only tricky part is that activated ARC Probes create a louder noise, signaling for help from other ARC bots, potentially drawing you into new combat. Fortunately, these attracted enemies are usually easy to deal with.
Search containers in specific location
All ARC Raiders maps have zones with densely packed containers for looting, but this Week 18 trial requires you to search Medical Research Wing in Stella Montis.
This area is located west of Stella Montis. Locate it using the mini-map markers and enter. Loot all the containers you can see.
However, be aware that Stella Montis currently has the most intense PvP among all ARC Raiders maps. To avoid unfriendly fire, it's best to bring less rare gear to avoid being targeted by players who like to loot others.
If you want to gain more points faster and improve your trial rating, please loot after map events starting, like Night Raid or Hurricane, which offer both danger and rewards - you might even find some unexpected treasures!
That concludes the details and completion methods for all Week 18 trial missions. We recommend completing them as soon as possible within the first three days of the week to avoid missing out on other gameplay options. Good luck!
If you want to complete the trial missions during dangerous map events, be sure to bring enough suitable weapons and grenades. ARC Raiders Blueprints for sale on IGGM can help you craft the gear you want faster, aiding in your trial progress!
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