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Corrupted Code

Summary:

While travelling to the coast in search of Omega Clearance, Aloy is ambushed by Specters guarding the path. After defeating them, she unexpectedly collapses. Upon waking, she discovers she has been transformed—the dormant nanites left behind by the fallen Specters have irrevocably reshaped her into something akin to the Zeniths. Now immortal and clad in a sleek, nanite-forged suit fused to her very skin, she gains the ability to manifest weapons at will. But as she struggles to understand what has happened to her, a terrifying truth begins to unfold—this transformation was no accident.

Notes:

This story is based on the work of Painted.Light on Tumblr. Their art can be found here: https://www.tumblr.com/paintedlight1/tagged/zenith%20au

I've had this idea for awhile now, ever since I first played Forbidden West. What are those pools of nanites that leak from the torn off components upon their defeat? I combined my thoughts with Painted.Light's AU to write this.

Chapter Text

The humid air of Lowland Tenakth territory clung to Aloy’s skin as she rode through the dense swamp, the call of distant machines echoing between towering trees. The Tenakth Recon armour she wore felt damp from the heat, the wooden bristles that covered her chest shifting as she adjusted her grip on the reins of her Bristleback mount. She was close now—just a little farther, and she’d reach the coast. From there, she could find a boat to the Isle of Spires, the ruins of San Francisco, where Omega Clearance and whatever secrets Ted Faro had buried in Thebes awaited her.

But as she guided the Bristleback along the winding road towards the coast, her Focus flared with a warning.

Multiple machine signatures detected.

She tugged the reins, slowing her mount. Golden markers flickered in her vision, highlighting the shapes of three spider-like machines clinging to the trees ahead—Specters. Their nanite bodies shimmered, limbs shifting with unsettling fluidity as they adjusted their positioning. One perched high in the canopy, its golden optics glowing like a predator waiting to strike. Another crouched low, its nanite tendrils unfurling, ready to shift into a weapon at a moment’s notice. The third blocked the path entirely, its sleek form standing motionless, but Aloy knew better than to think it hadn’t already spotted her.

A patrol.

Aloy cursed under her breath. She didn’t have time for this.

The Specter in the canopy moved first, limbs unfurling as it scaled down the massive tree trunk like a spider, golden nanites rippling across its body as it reconfigured itself. A sleek, angular cannon formed along its head. Aloy’s instincts screamed at her.

Move!

She flung herself off the Bristleback just as a blast of golden energy scorched through the air where she had been. She hit the ground in a roll, pulling her bow free in one fluid motion. The Bristleback bellowed, its metal hooves scraping the dirt as it charged into the jungle, its survival instincts kicking in.

Aloy didn’t have time to worry about it. The Specters were already advancing.

With practiced precision, she notched an advanced hunter arrow and fired at the Specter blocking her path. The shot struck true, tearing into the nanite plating on the upper left side of its head. Its eyes flickered, the damage momentarily disrupting its structure, but it didn’t stop. The other two were already repositioning—one shifting its forelimbs into wickedly sharp blades, the other charging up another blast from its cannon.

Aloy gritted her teeth. “Alright, if you’re going to fight me, then fight me.”

She launched herself forward, sliding beneath the first Specter’s swinging strike. The moment she was clear, she pulled a Blast Sling from her back, lobbing an explosive round at the second Specter. The grenade struck home, detonating against its shifting armour in a burst of fire and shrapnel. The jungle lit up for an instant, the explosion sending embers spiralling through the thick undergrowth.

Aloy didn’t stop moving. She rolled, switching to her Sharpshot Bow, and fired another shot at the weakened Specter. The arrow punched through its chest, and the machine collapsed in a pool of flickering golden nanites.

One down.

The remaining two adjusted. The Specter with the cannon fired another blast, forcing Aloy to dive behind a fallen log for cover. The other machine lunged, its bladed limbs slicing through the dense foliage as it came for her.

Aloy barely had time to react. She rolled to the side, narrowly avoiding the strike, then lashed out with her spear, jamming it between the machine’s shifting plates. Sparks erupted as she twisted the weapon, sending a shockwave through its structure.

The Specter screeched, its nanites destabilizing for a split second—long enough for Aloy to pull her bow free and fire directly into its core. The impact sent it staggering, and Aloy took the opening. She spun, bringing her spear down in a brutal overhead strike, driving it into the Specter’s head. The machine shuddered before collapsing, golden nanites spilling from its shattered form.

Two down.

The last one—the Specter with the cannon—hesitated for the briefest moment. Aloy saw her chance. She sprinted forward, flipping her spear into a throwing grip, and hurled it with all her strength. The spear struck the Specter’s cannon arm, disrupting its charge.

The machine screeched, its form rippling as it staggered. Aloy leapt, grabbing onto its shifting armour, and swung herself up onto its back. With a vicious motion, she drove Fashav’s dagger into the exposed joint at the base of its neck.

The Specter spasmed. Golden nanites erupted around her hands, shifting erratically as the machine lost cohesion. Aloy pushed off, flipping backward as the Specter collapsed into a heap of shifting metal and dying energy.

Silence.

Aloy stood amidst the wreckage, chest heaving. The golden pools of nanites surrounding the fallen Specters shimmered in the dappled light filtering through the jungle canopy. They pulsed faintly, as if still alive.

She wiped sweat from her brow, her Focus flickering as it finished scanning the remains. No more threats.

Aloy exhaled sharply, shaking the tension from her limbs as she surveyed the fallen Specters. Even broken, their forms still pulsed with an eerie vitality, golden nanites swirling in sluggish pools around their shattered components.

She stepped forward, kneeling beside the nearest wreck. The impact of her spear had split its core open, exposing delicate, shifting mechanisms beneath.

Let’s see what you’ve got for me.

She reached for her extraction tool, its sharp prongs glinting in the light filtering through the jungle canopy. Carefully, she began to pry at the machine’s plating, working to dislodge its weapon module. A Specter’s cannon—if she could extract it intact—might prove invaluable.

As she worked, her Focus flickered. A warning flashed across her HUD.

‘Residual energy detected. Unknown signal present.’

Aloy frowned. “Unknown signal?”

Before she could react, a wave of dizziness crashed over her.

Her vision blurred. The jungle swayed. The golden nanites pooled beneath her boots pulsed—once, twice—like a heartbeat.

Then, her body seized.

Aloy gasped, her muscles locking as if caught in an unseen vice. Heat surged through her veins, spreading from her fingertips to her core, burning like liquid fire. Her lungs hitched—she couldn’t breathe, couldn’t move.

Her extraction tool slipped from her fingers, clattering against the machine’s broken frame.

Panic clawed at the edges of her mind. She tried to stand, to reach for her Focus, to do something—but her legs buckled beneath her.

The last thing she saw was the golden nanites swirling around her hands, flickering like dying embers.

Then—darkness.


Aloy’s consciousness returned in fragments—distant birdsong, the soft rush of waves against the shore, the weight of her body pressed against warm sand.

She groaned, head pounding as she pushed herself upright. Her limbs felt heavy, sluggish, like she had just surfaced from drowning. The last thing she remembered was scavenging parts from the Specters—then pain, a fire burning through her veins—then nothing.

“How long was I out?”

She staggered to her feet, shaking the dizziness from her head. The jungle loomed behind her, but ahead, the trees gave way to the open starry sky. The scent of salt filled her nose.

The coast.

Aloy moved forward, the sand shifting beneath her boots as she approached the water’s edge. She needed to clear her head—just a splash of cold water to wake herself up, to shake off whatever the hell had just happened.

She knelt, cupping her hands in the cool surf, and splashed it against her face.

Then she froze.

Her reflection stared back from the gently rippling water—unfamiliar.

Her skin—once marked by faint scars and the wear of a life spent fighting—was… flawless. Every imperfection, every rough edge gone, save for the freckles still dusting her cheeks. Her cheekbones looked sharper, her features almost… ethereal. 

But her eyes—

One of them remained the familiar green she had always known. The other—

Golden. A luminous, burning gold, its sclera black as void.

Aloy’s breath hitched, her stomach twisting.

Then she saw the suit.

Gone was her Tenakth armour. In its place, a second skin—white and gold metal clinging to her form like it had grown over her, its surface smooth and reflective. Fiery red light pulsed beneath it in nebula-like patterns across her chest and arms, shifting like something alive.

Her hands trembled as she raised them, running them over the sleek, foreign material encasing her. The suit extended up to her neck, down to her wrists, and completely covered the rest of her body, the gold filigree catching the sunlight in an otherworldly shimmer.

This wasn’t armour.

This was her.

She tugged at the sleeves, fingers grasping for seams, for clasps, for anything to remove it. Nothing. The material wouldn’t budge.

Aloy’s breath quickened. Her hands moved to her ear, to where her Focus should be—

It was gone.

She staggered back, her boots sinking into the wet sand.

No, no, no.

Her heart pounded. Her breathing came in short, sharp bursts.

What happened to me?

She collapsed to her knees, her hands digging into the sand, her body trembling. The waves lapped at the shore, indifferent to her horror.

Aloy’s breaths came fast and shallow, her hands digging into the wet sand. Her heart pounded against her ribs like a caged machine trying to break free.

This isn’t real. It couldn’t be. She squeezed her eyes shut, willing herself to wake up, to shake off this nightmare.

But when she opened them, her reflection remained. The golden eye stared back. The suit clung to her like a second skin.

She swallowed hard, forcing air into her lungs. Panicking won’t fix this.

Aloy clenched her trembling fists. Think.

Her Focus was gone. But—

Her head pulsed. A subtle, unnatural sensation—like a presence just beneath her skin.

She reached up instinctively, fingertips brushing her temple. There was no device, no cold metal against her skin. Yet, as soon as she focused on it, something activated.

A flash of golden light.

Her vision blurred for a second, then sharpened—too much. A flood of data flooded her mind, far more detailed than her Focus had ever provided. She could see the composition of the sand, the air temperature, even the minute energy fluctuations in the wrecked Specters behind her.

Aloy flinched.

What the hell?

Her instincts screamed to rip the device out—except there was no device. It wasn’t something she could remove. It was inside her. A part of her.

Her Focus hadn’t been taken.

It had been replaced.

Aloy exhaled sharply, gripping her knees as she tried to process. Whatever had happened to her, it hadn’t just changed her appearance. She was… different. Physically. Technologically.

But why?

And more importantly—who did this to me?

She clenched her jaw, forcing herself to her feet. She was still shaken, still rattled by the sheer wrongness of this transformation, but fear would get her nowhere.

She had to find answers.

And the first step was figuring out what else had changed.

Aloy steadied her breathing, trying to push down the lingering panic clawing at the edges of her mind. She needed answers—now.

Her hand moved to her waist instinctively, reaching for her weapons.

Nothing.

Aloy froze. Her bow, her spear, her tripcaster—all gone. Not on her back, not on her belt. As if they had never existed.

Her pulse spiked again. No, no, no—

She had spent years gathering and modifying her arsenal, relying on them in battle. She couldn’t just lose them.

Her hands clenched into fists. Think, Aloy. If you lost them, find a replacement.

Her mind immediately went to her spear.

The one Rost had given her.

The first weapon she had ever owned. The one that had been with her since the start of her journey.

She needed it.

And then—

A shimmer of light rippled down her arm.

Aloy gasped as white and gold nanites surged from her suit, flowing down her fingers like liquid metal. The material elongated, reshaping, hardening—

Until she was holding a weapon.

Her spear.

Her exact spear.

Aloy’s breath caught as she turned it over in her hands. The weight was perfect, the grip familiar, every detail identical to the one she had carried for years.

But it wasn’t wood and metal anymore. It was like the suit—smooth, seamless, infused with the same fiery red light pulsing just beneath the surface.

It had formed out of her.

Aloy’s grip tightened.

Her weapons weren’t gone. They had become a part of her.

She inhaled slowly. The panic, the fear—it was still there, lurking beneath the surface. But now, something else settled in her chest.

Control.

She didn’t understand this change yet. Didn’t know who had done this to her, or why.

But if this was her reality now—

Then she would master it.