Base game · Symbiotes
Risk of Rain 2 REX
REX is a half robot / half plant that uses HP to cast devastating skills from a distance. The plant nor the robot could survive this planet alone – but thankfully they have each other. To unlock REX: Repair the broken robot with an Escape Pod's Fuel Array. In the combined Risk of Rain 2 tier list REX is C tier, rated by 7 of 7 lists.
- Tier
- C
- Health
- 130 +39/lvl
- Damage
- 12 +2.4/lvl
- Regen
- 1/s
- Speed
- 7 m/s
- Armor
- 20
REX abilities
All ror2 REX abilities from the game data, alternates included: 1 passive, 1 primary, 2 secondary, 3 utility, 2 special. Alternates unlock through REX's challenges.
Passive
Natural Toxins
Certain attacks Weaken enemies hit, reducing their movement speed, armor, and damage.
Primary
DIRECTIVE: Inject
Fire 3 syringes for 3x80% damage. The last syringe Weakens and heals for 60% of damage dealt.
Secondary
DIRECTIVE: Drill · unlock: REX: Bushwhacked
Launch a series of seed bullets into the sky, raining down for 450% damage per second.
Seed Barrage
15% HP. Launch a mortar into the sky for 450% damage.
Utility
DIRECTIVE: Disperse
Fire a Sonic Boom that Weakens all enemies hit.
Bramble Volley · unlock: REX: Dunked
20% HP. Fire a Sonic Boom that damages enemies for 550% damage. Heals for every target hit.
Proliferation · unlock: REX: Invasive Growth
20% HP. Throw a flower that shoots for 200% damage. Use the Utility skill on the flower to teleport to it, consuming it and healing for 20% HP. Can place up to two.
Special
DIRECTIVE: Harvest · unlock: REX: Full of Life
Fire a bolt that deals 330% damage and injects an enemy. On death, drop multiple healing fruits that heal for 25% HP.
Tangling Growth
25% HP. Fire a flower that roots for 200% damage. Heals for every target hit.
How to unlock REX
Power Plant: Repair the broken robot with an Escape Pod's Fuel Array.
- Unlocked REX28.2%
- Beat Monsoon as REX11.0%
Share of all Risk of Rain 2 owners on Steam with each achievement.
REX in the tier lists
- GameTruth · Oct 2026B
- TierMaker community · Oct 2026A
- GameBrief · Oct 2026B
- Rogue Ranker · Apr 2026C
- Game Rant · Feb 2026#16
- Common Sense Gamer · Jan 2026C
- Deltia's Gaming · Nov 2025D
Combined: C tier. See the full Risk of Rain 2 tier list.
FAQ
How do you unlock REX in Risk of Rain 2?
Complete the challenge “Power Plant”: Repair the broken robot with an Escape Pod's Fuel Array. 28.2% of Risk of Rain 2 players on Steam have done it.
Is REX good in Risk of Rain 2?
REX is C tier when 7 published tier lists are combined: B on GameTruth, A on TierMaker community, B on GameBrief, C on Rogue Ranker, #16 on Game Rant, C on Common Sense Gamer, D on Deltia's Gaming.
What are REX's abilities?
Passive: Natural Toxins. Primary: DIRECTIVE: Inject. Secondary: DIRECTIVE: Drill or Seed Barrage. Utility: DIRECTIVE: Disperse or Bramble Volley or Proliferation. Special: DIRECTIVE: Harvest or Tangling Growth. Alternate abilities unlock through survivor challenges.
Abilities and stats from the Risk of Rain 2 Wiki. Updated Oct 19, 2026.