Risk of Rain 2 Rex [Complete Guide]

The guide will include how to find Rex, what his abilities are, what items you should get, and lastly, the best Risk of Rain 2 Rex tips.

Rex is one of the most fascinating and controversial survivors in Risk of Rain 2. He is often dubbed self-destroying; however, many players who might have used him would highly disagree. Rex is entirely different from the rest of the survivors; playing him feels refreshing. This is partly related to his slow movement speed, but most importantly, the High Risk and High Reward Factor.

Key Takeaways
  • Rex,<strong> a powerful survivor in Risk of Rain 2&lt;/a>,</strong&gt; has a High-Risk Factor due to self-damaging health.
  • To unlock Rex, choose any character, go to the Abyssal Depths, and repair the broken robot (Rex) with the Fuel Array.
  • Fuel Array activates his Power Plant Challenge, making Rex playable.
  • Rex’s abilities, including directive-inject, Seed Barrage, Directive Disperse, and Tangling Growth, contribute to his effectiveness.
  • Maintain Rex’s health above 60%, relying on Tangling Growth for optimal health management.
  • Items like Topaz Brooch, Harvester’s Scythe, Backup Magazine, Rejuvenation Rack, Medkit, and Tougher Times can help overcome Rex’s weakness and enhance his chances of winning.

More Risk of Rain 2 Character Guides:  Risk of Rain 2 Acrid: A Complete Guide

How To Unlock Rex in Risk of Rain 2?</a>

First off, let’s quickly review the stats of Rex in ROR2:

Character NameHPHP RegenDamageSpeedArmor
Rex130 [+39 per lvl]- Drizzle: 1.5/sec [+0.2 per lvl]
- Rainstorm: 1/sec [+0.2 per lvl]
- Moonsoon: 0.6/s [+0.2 per lvl]
12 [+2.4 per lvl]7 m/s20 (Drizzle: 90)

The Half Robot and Half Plant aren’t very hard to unlock except if you come across a clear guide. Most players have made a big deal by unlocking <strong>Rex&lt;/strong&amp;gt; in Risk of Rain 2. In other words, numerous factors like artifacts and difficulty are now associated with him, which do not have any impact. Rex can be unlocked through a couple of steps, as shown below. You can click on the heading to go through an in-depth guide on unlocking Rex, though.

  1. Pick any character except MUL-T and start playing the gameRisk of Rain 2 Rex
  2. As you spawn under the Escape Pod, head on the backside of the Pod, and you will encounter an interaction asking you to use the interact button. Afterward, it’ll open the door, and you will be given the Fuel Array.
  3. This Fuel Array is highly volatile, so If your health drops below 50%, It’ll automatically catch flame and explode, ultimately killing your character.

Fast-forward, and carry the Fuel Array to Stage Four, the Abyssal Depths, located in Petrichor V. As you encounter the environment, go to the Highest Platform on the map. There, you will encounter a broken robot, Rex, and all you have to do is repair him with the Fuel Array.

Rex’s Abilities Risk of Rain 2

Ability NameTypeCooldownProc CoefficientEffects
Natural ToxinsPassiveN/AN/A- Some attacks weaken enemies
- Reducing their speed, armor, and dmg
- Duration: 3 secs
DIRECTIVE: InjectPrimaryN/A0.5x3- Fire 3 syringes
- Total Dmg: 3 x 80%
- Last syringe weakens enemies
- Heals 60% of the dmg dealt
DIRECTIVE: DrillSecondary6 secs0.5x16- Fire a bunch of seed bullets in the sky
- Total Dmg: 450% per second
Seed BarrageSecondary0.5 secs1- Fire a mortar in the sky
- Total Dmg: 450%
DIRECTIVE: DisperseUtility5.5 secs0.0- Fire A Sonic Boom
- Weakens Enemies By Reducing Their Speed, Armor,
and Dmg
Bramble VolleyUtility5.5 secs0.5- Fire A Sonic Boom
- Total Damage: 550%
- Heals HP For Every Target You Hit
DIRECTIVE: HarvestSpecial6 secs1- Fire A Bolt
- Damage: 330% And Inject Enemies
- Heals 25% HP And Drops Healthy Fruits On Death
Tangling GrowthSpecial12 secsProjectile: 1
Roots: 0
- Fire A Flower That Roots
- Damage: 200%
- Heals HP For Every Target It Hits

In this segment of the guide, I will examine all of Rex’s abilities. Afterward, I will shortlist the best combinations and share gameplay tips regarding which is better. The segment will also describe each of Rex’s abilities, so keep reading.

Primary: Directive – Inject

Risk of Rain 2 Rex

Rex’s standard M1, the Directive Inject, may not be as popular, but it proves highly useful. This ability fires a three-round burst, with the final shot uniquely healing 60% of the inflicted damage while applying the Weakened buff.

The Weakened buff reduces the enemy’s movement speed and damage by 40%, narrowing its armor health. However, the buff is only effective if the third shot of the burst hits the target.

  • While Rex’s Primary Ability is straightforward and generally effective, the package has limitations.
  • A low Proc Coefficient reduces the chances of successful procs, and the health and damage dealt become less valuable in later game stages.
  • Mastering the ability is worthwhile, but dependency on it should be avoided.
  • The Weakened Debuff remains the key, and other characteristics may become less relevant later.

Seed Barrage

Risk of Rain 2 Rex
Seed Barrage

The Seed Barrage, also Rex’s M2, is easily one of the most reliable abilities out there. Although it does a high amount of damage—450%—this is really great. However, the ability comes at the cost of a 15% health reduction.

This 15% is always taken from the total health, and besides, one more thing that makes up for this reduction is less than a one-second cool-down.

Directive Disperse

Risk of Rain 2 Rex

Directive Disperse is criticized for not fully addressing Rex’s issues and lacks an attractive skill. While some players find it unappealing, it can be effectively used for rotation, reducing enemy movement, and providing a backward push.

This proves helpful against larger enemies, allowing for strategic repositioning and even pushing enemies off ledges for falling damage. Despite drawbacks, Directive Disperse has situational utility in Rex’s gameplay.

Tangling Growth

Risk of Rain 2 Rex
Tangling Growth

In criticized situations, Rex’s Tangling Growth proves vital, boosting health and posing a threat to enemies. Like a deadly tree, this ability automatically traps and damages enemies, utilizing a flower for 200% damage.

  • The crucial aspect is healing; hitting targets grants health boosts, with enemies killed inside the radius contributing to the increase.
  • Notably, they don’t need to be killed by Tangling Growth.
  • With a Proc Coefficient of 1, mainly supported by projectiles, this special ability comes with a 25% health reduction.
  • The heal per target is 1.5% of the character’s max health, and the cooldown for Tangling Growth is 12 seconds.

Rex Playstyle Guide

Risk of Rain 2 Rex
Playstyle guide!

Just Like Artificer, every Risk of Rain 2 character has its weaknesses. This also goes for Rex, who is highly dependent on his health, and all his abilities are circled around it. If you want to kill dozens of enemies in Risk of Rain 2 through Rex, you will have to make sure his health is consistently above 60% so the M2 (Seed Barrage) can be utilized.

This was just the core idea on how to get the most out of Rex, but to explain the best Rex Playstyle in-depth, here is how you should go about it. In playing Rex in Risk of Rain 2, prioritize Health Recovery, avoiding reliance on Directive: Inject’s minimal boost.

  • Rely on Tangling Growth for substantial health recovery by trapping as many enemies as possible.
  • Use the health boost from Tangling Growth to power Seed Barrage, a potent attack that reduces health.
  • The strategy involves maximizing Seed Barrage usage while regenerating health through Tangling Growth.
  • Save Seed Barrage for larger groups of enemies, utilizing M1 for smaller foes.
  • When grouping enemies under Tangling Growth, ensure larger threats are dealt with first to maintain high HP and facilitate effective health regeneration.

Last but not least, all this meta applies in the entire game. Spam your Seed Barrage on deadlier enemies and save the smaller enemies for Tangling Growth. Likewise, always be cautious about not giving your whole health so easily.

Best Items for Rex

In this segment of the guide, I will take a look at the best Items of Rex. These items will help Rex corroborate his weaknesses, find a way to win games, and, most importantly, take him to the next level.

Topaz Brooch

Risk of Rain 2 Rex
Topaz Brooch
Rarity Category Effects Per Stack Buffs Stack Type
Common Utility/Healing Barrier: 15 +15 increase in Barrier Linear Type

The Topaz Brooch’s Barrier won’t grant one-shot protection nor interact with your original health. The Topaz Brooch is highly reliable when solving Rex’s health ability and allowing more room to spam M2.

Harvester’s Scythe

Rarity Category Effects Per Stack Buffs Stack Type
Uncommon Healing
  • Heal: 8
  • Crit Chance: 5%
  • 0% increase in critical chance
  • +4 restored health amount increase
Linear Type

The Harvester’s Scythe can be heavily reliable when it comes to Healing Rex. As I discussed earlier, Health is his biggest concern, and with Harvester Scythe, you can heal yourself 8 HP for every critical attack you are able to manage.

Backup Magazine

Risk of Rain 2 Rex
Backup Magazine.
Rarity Category Effects Per Stack Buffs Stack Type
Common Utility Charge: 1 +1 additional extra charge Linear Type

As always, the Backup Magazine is highly compatible with most survivors in Risk of Rain 2. The Backup Magazine would help Rex uphold his spammy tactics and deal more damage. Besides, the additional stacks wouldn’t be too bad when it comes to cooldown.

Rejuvenation Rack

Rarity Category Effects Per Stack Buffs Stack Type
Legendary Healing Heal: 100% Additional 100% Healing Linear Type

Another Health Item that can help assess your gameplay is Rejuvenation Rack. This is a legendary item that will automatically double your healing strength. You can also utilize it with N”Kuhana’s Opinion, and Bustling Fungus.


Rarity Category Effects Per Stack Buffs Stack Type
Common Healing Heal: 5% +5% increase in max health percentage Linear Type

The Medkit could be another great asset for Rex in the game. This is primarily useful in early-game scenarios where Med Kit’s functionality can efficiently work since it’s not accessible during fights. The Heal is always delayed after you take the damage. Keep in mind, that as you are continuously making use of M2, the Medkit is mostly useless.

Tougher Times

Risk of Rain 2 Rex
Tougher Times
Rarity Category Effects Per Stack Buffs Stack Type
Common Utility Block Chance: 15% Additional +15% increase in Block Chance Hyperbolic Type

The last and most important piece of the puzzle is Tougher Times. This can make Rex absolutely indestructible. The Tougher Times will remove the self-damage from M2; It’ll provide a 15% chance of negating damage. This is a common item; finding it won’t be hard, and besides, your biggest drawback, which is self-damage from abilities, will be nullified.


Risk of Rain 2’s Rex is one of the most potent and destructive survivors in the game. If used correctly – that is to say, you can find the weak spots and address them with relevant Items plus correct usage of abilities. Rex can be excluded from being labeled as a bad survivor.

Start Using Rex, and make sure that his weakness, which includes self-damaging health is addressed. Rest assured, once you do that, you will always find a way to win games and impress your friends.

Other Risk of Rain 2 Characters: Risk of Rain 2 Loader

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Moiz Banoori is the brains behind eXputer. Having worked at various Video Game sites, with 8 years of Content Writing Experience and a Journalism Degree at hand, he presently monitors teams, creates strategies, and publishes qualified pieces through his aptitude at eXputer. Feel free to get in touch with him through his gaming profile on Steam and PSN.

Experience: 8+ Years || Manages Teams, Creates Strategies, and Publishes Guides on eXputer || Education: Bachelors in Journalism.

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