Week 20 of ARC Raiders Trials brings five new challenges that mix cache hunting, ARC container searches, airborne enemy fights, and one Riven Tides beach objective. Whether you’re chasing leaderboard promotion or trying to lock in the best weekly rewards, the key this week is choosing the right map for each objective and extracting before your points disappear.
Unlike older Trial weeks, map conditions no longer give a 2x score multiplier, so you do not need to wait for a specific bonus window. You can still use certain conditions to improve enemy spawns or loot opportunities, but your score per action stays the same.
What Are the Week 20 Trials in ARC Raiders?
Trials in ARC Raiders are a weekly ranking system where you earn Trial Points by completing specific objectives. Each Trial requires 4,000 points to reach three stars, and hitting that threshold gives access to the best reward tier, including high-value items and blueprint drops.
The Week 20 Trials are active from May 11 through May 17, 2026, and here’s the full list:
- Search Raider Caches
- Damage Fireflies
- Search ARC Probes, Couriers, or Assessors
- Damage Vaporizers
- Damage ARC enemies on the Beach
All five Trials require a successful extraction before your progress registers. Don’t overstay after hitting the three-star threshold.
ARC Raiders Guide: How to Complete All Week 20 Trials (May 11)
How Does the Three-Star Point System Work?
Every Trial uses the same point threshold:
Leaderboard placement at week's end also determines whether you get promoted or demoted in rank, with positions 1-30 earning a double promotion, positions 31-60 earning a single promotion, and positions 61-100 retaining their current rank.
How to complete the Search Raider Caches trial
Dam Battlegrounds is the go-to map here. Raider Caches are partially buried tin boxes that produce a distinct humming sound when you get close. Each cache awards 500 Trial Points, and you need to search 8 to reach three stars.
A few things that save time:
- If another player already opened a cache, searching it still awards your Trial Points.
- Listen for the cache-opening sound effect nearby to locate caches other players are currently looting.
- Running solo with aggression-based matchmaking enabled keeps lobbies lighter.
Buried City and Spaceport also have decent cache densities if Dam Battlegrounds lobbies are too hot. The Hurricane Major Map Condition improves loot inside caches, though it no longer doubles points.
How to complete the Damage Fireflies
Fireflies are flying ARC machines that drop from the sky like Wasps but hit harder and carry a flamethrower on their underbelly. Each kill awards 800 Trial Points, and you need 5 kills for three stars.
Blue Gate is the recommended map because its flat terrain lets you spot Fireflies from a distance before they close in. Head to the Overlook Airshaft east of Checkpoint first, then sweep northeast toward Pilgrim's Peak.
ARC Raiders Guide: How to Complete All Week 20 Trials (May 11)
What loadout works best here?
The Jupiter or Hullcracker are ideal because they can one-tap a Firefly in the air. This matters because if a Firefly crashes from thruster damage rather than a clean kill, you do not receive points for the fall damage. Bring at least 4 stacks of ammo and a Photoelectric Cloak to disengage if a pack closes in.
I recommend the Anvil or Ferro for chewing through the armored plating. Fireflies are more armored than Hornets, so mid-tier weapons will burn through your ammo before the kill registers.
Fireflies often spawn in packs alongside Wasps and Hornets. Engaging a cluster without cover can end your run fast. Pick them off from range whenever possible.
How to complete the Search ARC Probes, Couriers, and Assessors trial
This trial now bundles three container types into one objective, which makes it more forgiving than previous probe-only versions. Probes and Couriers spawn on most maps, while Assessors appear exclusively during the Close Scrutiny map condition.
Plumes of smoke and a beeping sound indicate a nearby Probe or Courier. Searching a container that another player already breached still awards your Trial Points.
Two solid approaches depending on your risk tolerance:
- Lower risk: Load into Spaceport during an Electromagnetic Storm event. More Probes spawn, the fights are manageable, and you can stack points quickly.
- Higher risk, higher reward: Run Close Scrutiny on any eligible map to include Assessors. Bring smoke grenades and a Photoelectric Cloak because Vaporizers and heavy ARC guard every Assessor location.
For a broader look at weekly trial strategies and how to approach them efficiently, the ARC Raiders Trials pro tips guide breaks down map selection and point-maximizing tactics in detail.
How to complete the Damage Vaporizers trial
Vaporizers are the most dangerous trial this week. Each kill can award up to 3,600 Trial Points, and you only need 2 kills for three stars, but getting there cleanly requires patience.
They spawn on every map except Stella Montis. During Major Map Conditions they appear more frequently, which speeds things up if you can handle the extra pressure. To find them reliably, run Close Scrutiny and follow the red beams of light in the sky to Assessor locations. Each Assessor is typically guarded by up to three Vaporizers.
How do you fight a Vaporizer efficiently?
- Target the underbelly to expose the core weak spot, then focus fire on the core for heavy damage.
- Avoid destroying the thrusters or stunning it with a grenade before the kill, because crash damage does not count toward your Trial Points.
- Firing a cheap throwable forces the Vaporizer to deploy its shield. Use the Photoelectric Cloak to wait out the shield phase and avoid the laser barrage.
Two Vaporizer kills is all you need. If your first encounter goes poorly, extract and reset rather than burning resources on a third engagement.
How to complete the Damage ARC on the Beach trial
This trial is exclusive to the Riven Tides map. The target area is the Azzurro Beach location, north of Hotel Panorama Azzurro. The scoring is 0.8 Trial Points per 1 HP of damage, and you need to deal 5,000 HP worth of damage for three stars.
The math works out cleanly: deal enough damage to ARC enemies while they are on the beach and you hit three stars without needing a precise kill count.
Practical tips for this trial:
- Bring heavy-hitting weapons like the Hullcracker, Anvil, or Bettina to chew through HP quickly.
- ARC minibosses from the Port Authority Building and surrounding POIs can be lured onto the beach. Any damage dealt while they are on the beach counts toward the trial.
- Night Raid map condition spawns more ARC in the area, giving you more targets to damage without requiring a specific Major Map Condition.
ARC Raiders Guide: How to Complete All Week 20 Trials (May 11)
Rewards and why three stars matter
Three-starring all five trials in a single week gives you access to the highest reward tier, which includes blueprint drops. Blueprints from Trials have included Legendary-tier items in previous weeks, making consistent three-star runs one of the most reliable ways to progress your loadout without relying on extraction luck.
For players still building their foundational knowledge, the ARC Raiders first 7 quests walkthrough covers the early progression path that unlocks the loadout options you will want for these harder trial encounters.
If you want a full breakdown of every active quest running alongside these Trials, the complete ARC Raiders quest list covers all traders, objectives, and rewards in one place.
For everything else happening in ARC Raiders this season, including past trial walkthroughs and enemy guides, the full ARC Raiders strategy guides collection has you covered.