What to know

  • Complex Root is a legendary sniper rifle manufactured by Maliwan.
  • To get it, defeat Mimicron in the Tipping Point Order Bunker, Idolator's Noose, Fadefields.
  • Moxxi's Encore Machine allows for easy respawning of bosses for farming after the first defeat.
  • Complex Root may also drop as part of enhanced loot pool events like Rift encounters.

Borderlands 4 players looking to boost their arsenal with high-performing gear will want to target the Complex Root sniper rifle. Its reputation for serious firepower and flexible elemental effects means it can fit many character builds and vault hunter strategies.

How the Complex Root drops and its location

Complex Root is not a random world drop, but a dedicated legendary that comes specifically from the Mimicron boss inside the Tipping Point Order Bunker at Idolator's Noose in the Fadefields region. Mimicron also drops the UAV ordnance, but the Complex Root is the most coveted reward from this encounter.

Players can start farming this location once the area and boss are unlocked. After defeating Mimicron once, subsequent runs can be made faster using Moxxi's Encore Machine by paying a fee to respawn the boss without leaving the area. This new Borderlands 4 system streamlines the legendary grind and removes the need for traditional save-quit farming cycles.

Step-by-step guide to farming Complex Root

Step 1

Unlock access to the Fadefields region and find Idolator's Noose, then locate the Tipping Point Order Bunker within this area.

Step 2

You can use Echo to find the entrance. It's a large ventilation door with a fan-like design. It should look like this. Go through it.

Step 3

Then take the ladder on the right, and go up to the right.

Step 4

Carry the bomb.

Step 5

Drop down through the hole in the floor and throw the bomb at the bunker entrance.

Step 6

Once it opens, go through it.

Step 7

Explore the bunker and reach the Mimicron boss arena.

Be prepared for multi-phase fights and bring elemental weapons suited to the boss's weaknesses.

Step 8

Defeat Mimicron.

The Complex Root has a chance to drop directly from this boss, though it may require several attempts due to drop rates.

Step 9

After the initial kill, use Moxxi's Encore Machine outside the boss room to instantly respawn Mimicron for additional farming runs. The fee is paid using in-game currency and scales with level.

Step 10

Repeat Steps 8–9 until the Complex Root drops. Enhance efficiency by clearing nearby enemies to avoid interruptions and mind Rift events for extra legendary loot opportunities.

More ways to optimize legendary drops

Legendary drops in Borderlands 4 can also occur during Rift world events. These dome-shaped encounters have increased drop rates for epic and legendary gear, including Complex Root—though a boss farm run has higher targeted reliability.

Maurice's Black Market Vending Machine presents another route to snag legendary items, but this feature unlocks only after finishing the campaign and rotates stock regularly, meaning patience may be required if Complex Root appears.

Complex Root's Evolution and Stats

The Complex Root echoes its Borderlands 3 roots but evolves with Borderlands 4's overhaul, sporting the "Sierpinski" effect where bullets split into fractal-like paths for added coverage. Maliwan's corrosive base shines against armored foes, with elemental swaps available via anointments.

Base stats include 2,500-3,000 damage at level 10, 1.2 fire rate, and 90% accuracy, scaling seamlessly into mid-game. Community benchmarks show it outperforming standard snipers by 40% in multi-target scenarios, thanks to no self-damage risk on the divergences.

Complex Root remains one of the best legendary sniper rifles early and mid-game in Borderlands 4, prized for its elemental power and high damage. Consistent farming of Mimicron in Fadefields, using gameplay features like the Encore Machine, guarantees a streamlined legendary loot grind for vault hunters.