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ARC Raiders Week 21 Trials to complete before the next major patch drops | Three-Star Rating is the best!

Category: ARC Raiders Posted: Mar 24, 2026 Views: 12

It's a new week! However, March Flashpoint update isn't expected to go live via a new patch until next Tuesday. Your top priority this week remains completing the trials and using the rewards you earn to advance through Expedition 3 and further develop your character.

This week, specifically March 23rd through March 29th, marks the 21st week of weekly trials since the game's launch.

As always, there are five distinct trials waiting for you to complete. You can take your time and chip away at them over the first few days, or you can save them all to complete in a concentrated push during the final days of the week.

Below, we provide detailed breakdowns for all five trials, ensuring you have the information you need to jump in and get started whenever you're ready.

ARC Raiders Week 21 Trials to complete before the next major patch drops | Three-Star Rating is the best!

Harvest plants

This trial is quite straightforward: you simply need to gather a sufficient quantity of specific plants on any map and submit them to accumulate points. Once you reach 4,000 points, you will complete the trial with a perfect three-star rating.

While there are many types of plants in ARC Raiders, only the following count toward the point requirements for this specific trial: Agave, Great Mullein, Moss, and Mushrooms.

You are free to harvest other plants if you have personal needs for them, but doing so will not contribute to completing this trial.

Each individual plant you gather yields 150 points; however, if you harvest them during any major map event, you will earn double points.

Furthermore, we highly recommend that you focus your farming efforts while Lush Bloom event is active. This event doubles the spawn rate of all natural resources, which can significantly boost your gathering efficiency.

It is worth noting that while this trial itself does not involve combat, plants harvested during a single scavenging run do not respawn. Consequently, gathering these resources will inevitably lead to PvP encounters with other players, so please remain combat-ready at all times.

Destroy Ticks, Fireballs, and Pops

This mission requires you to defeat sufficient Ticks, Fireballs, and Pops. Individually, the combat capabilities of these three types of small ARC units are quite limited; however, they can become extremely troublesome when they appear in swarms.

Ticks resemble small mechanical spiders. Their primary method of attack involves pouncing on you and latching onto your body; if you do not shake them off and kill them immediately, both your health and shield will be depleted.

Both the appearance and attacks of Ticks generate a significant amount of noise, making them relatively easy to detect. Typically, a single Tick will die after taking just one hit.

The most effective way to quickly clear out a large swarm of Ticks is to unleash rapid-fire bursts at close range or to toss a grenade.

Fireballs primarily deal damage by spewing flames at you. The best way to defeat this enemy is to shoot them quickly after they open their front panel, exposing their core, which serves as their weak point, during an attack animation.

If you miss this window of opportunity, you can still inflict damage by using medium or heavy caliber rounds to pierce through the armor protecting their core.

Pops typically appear indoors alongside Fireballs; they will approach you and, after a brief delay, detonate to inflict damage. Your objective is simply to utilize that short delay window to destroy them immediately.

These three enemy types spawn across most maps and are relatively easy to deal with. However, if you happen to be particularly unlucky and encounter an overwhelming number of them, it is prudent to retreat at an appropriate moment to ensure your safety.

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Damage ground-based ARC enemies

Although this trial requires you to engage in combat, the range of eligible enemies is quite broad, offering you a relatively high degree of freedom. You can choose to focus on farming the ground-based ARC units you are most familiar with.

It is worth noting that Ticks, Fireballs, and Pops featured in the second trial mission all qualify as ground-based ARC units; if you wish to keep things simple, you can certainly continue to target them.

However, if you are a top-tier player unafraid of facing massive ARC units, you could instead opt to take on ultimate PvE enemies such as Matriarch or Queen.

Other ground-based ARC bots include:

  • Turret
  • Surveyor
  • Sentinel
  • Leaper
  • Bastion
  • Grenadier

Search containers in Medical Research

The procedure for this mission is straightforward: travel to Stella Montis, enter Medical Research facility located on the western side of the map, and then search every container you can find.

If you wish to complete this task more quickly, you can wait for a major event, such as Night Raid, to trigger on the map before you begin farming, as the container spawn rate increases significantly while these events are active.

However, much like harvesting plants, you are bound to encounter other players who are also working on missions; this may lead to conflicts as you compete for access to containers. Therefore, be sure to bring a secure pocket and equip yourself with high-quality gear.

Disable mines

This trial mission requires you to complete it after Locked Gate event has triggered on Blue Gate map. The objective of the event itself is to locate four security keys at specific points and use them to unlock an underground bunker to claim a reward.

However, if your sole intention is to complete the trial mission, you can disregard those objectives. Instead, your task is to search the ground area for hidden mines and disarm them.

You need only disarm a maximum of 14 mines to earn a three-star rating for this trial. However, it is crucial to exercise caution: to avoid accidentally detonating a landmine and inflicting unnecessary harm upon yourself, you must approach the area slowly.

Ensure that the mine can be safely disarmed without triggering an explosion before you begin the operation.

Summary

Even in the absence of specific requirements, we recommend that you always complete your Trials whenever a major map event is active, as this allows you to earn double points.

Of course, if you find these events too challenging in the short term, that is perfectly fine; you can simply start accumulating points gradually from the beginning of the week, and you will still be able to complete the objectives in the end.

The above covers all the trials for Week 21, along with the recommended strategies for tackling them. Please plan your time wisely and set out to complete them!

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