COREBOUND
Language: EN

Robot hero meets tower defense

COREBOUND

Born from scrap. Built to guard the valley.

You are an old guardian, woken deep in the scrap. Shoot the machines, build towers from what they leave behind, and keep the valley's last generator running.

In closed testing on Google Play · Coming soon

Join the testSee the story

Story

A sunny desert, piles of scrap, and one light still burning.

High view of the walled valley arena with the glowing generator in the middle
Top-down view of the Iron Foundry: enemy robots stream out of a gate toward the generator while the guardian fires
Low view: orange-and-yellow Scrappers march past, the generator behind them
Sand-coloured scrap blocks fly together and the newly assembled robot rises, the generator behind on the right
The robot walks toward the camera in front of the generator, its orb glowing
Top-down fight in the valley: the guardian shoots orange-eyed Scrappers near the generator
The camera rises over the valley; a glowing route of ten nodes leads away from the generator

  1. Once, machines carried water and light to the valley.

  2. Then the Prime AI seized the factories and bound every machine to itself.

  3. The corrupted machines marched on the valley’s last power source: the Valley Generator.

  4. Deep in the scrap, an old guardian that never joined the network woke up.

  5. It has one task: keep the generator standing.

  6. It builds its defenses from the scrap of every machine it defeats.

  7. The valley is the first step. The road to the Prime AI crosses ten regions.

Guardians

One guardian, three bodies. Pick the one that fits how you play, and bring a helper along.

  • Vanguard: a cream robot in a crouched stance with cyan joints, one round cyan eye and two tall antennas on its back

    Balanced

    Vanguard

    Ready for anything. Reloads faster right after a dash.

    Armor
    3/5
    Speed
    3/5

    Available from the start

  • Bastion: a dark slate robot with a big rounded torso, a two-eyed visor face, a cyan chest screen and long arms with large cyan-lit hands

    Heavy armor, slow

    Bastion

    A big frame that stands its ground. It soaks up hits, yet its hitbox stays small.

    Armor
    5/5
    Speed
    2/5

    Unlocks at level 12

  • Strider: a slim cream robot with a mint-cyan shoulder cape, holding a long cyan-edged blade in its right hand

    Fast, light armor

    Strider

    Small and nimble. Dashes more often and slips through the crowd.

    Armor
    1/5
    Speed
    5/5

    Unlocks at level 5

Helpers

  • Bolt: a faceted grey metal robot dog standing on four legs

    Bolt

    A robot dog. Follows you, leaps at nearby enemies and bites. If it falls, it's back at your side soon.

  • Laser Drone: a dark metal sphere drone with a round front eye with a cyan slot and two side thrusters

    Laser Drone

    Circles your robot and lasers whatever you aim at.

  • Shield Drone: a dark metal sphere drone with a round front eye with a cyan slot and two side thrusters

    Shield Drone

    Every few seconds, wraps your robot in a short-lived shield.

Machines

They all served the valley once. Now they march on the generator with orange eyes.

The Prime AI

The mind that shut down the factories and bound every machine to its network. It calls itself the Architect. The red data lines are its trail, and it waits at the end of the road, in its data fortress.

  • Scrapper: a black-and-orange two-legged walker with a boxy head and one round orange eye

    Scrapper

    Comes in packs and follows you up close. The first machine the valley meets.

  • Runner: a black sphere body with a large glowing orange eye, on two legs with orange joints

    Runner

    Fast. Circles around the side, looking for gaps in your defense.

  • Gunner: an orange-eyed black sphere walker with a black gun turret on top

    Gunner

    Shoots from a distance. A sight line flashes just before it fires, so step aside.

  • Bulwark: a black sphere with two orange eyes inside an open armoured shell, on two legs

    Bulwark

    A heavy machine with a front shield. Hit it from the side or use area damage.

  • Bomber: a black sphere with a fin on top and two arms ending in orange clamps

    Bomber

    Walks right up to its target and explodes. Shoot it while the fuse burns and it falls without a blast.

  • Welder: a tall, thin black humanoid robot with orange trim, a "0" marking on its head and blade-like legs

    Welder

    A flame-spitting welder that goes for your towers first.

  • Artillery: a sphere-in-shell walker with a twin black cannon block on top and a yellow tank on its back

    Artillery

    Shells your towers from afar. The landing spot is marked two seconds ahead.

  • Jammer: a big black sphere with an orange slot eye and two side pods

    Jammer

    Deals no damage, but sets up an EMP field that silences towers and drones inside it.

Region bosses

Scrap Titan: a giant armoured black sphere on two legs, with glowing orange eyes, a twin cannon block on top and a yellow tank

B01

Scrap Titan

The giant waiting at the end of Scrap Valley. It charges at you; make it hit a wall and it's stunned and open.

Furnace Maw: a wide, flat, round-edged copper body on two heavy copper legs

B02

Furnace Maw

Keeper of the Great Forge. It sprays flames and burning pools; drain its coolers to open its weak point.

Arsenal

32 weapons, each with its own way to play. Not stronger, just different.

Weapons

  • Arc Emitter: a cyan blaster with a silver barrel and coil rings at the muzzle

    Chain lightning

    Arc Emitter

    Lightning leaps from target to target. It shines in a crowd.

  • Flame Jet: an orange gun with a dark grey nozzle and a drum under the barrel

    Burning cone

    Flame Jet

    Engulfs everything in front and sets it ablaze. Short range, wide reach.

  • Cryo Sprayer: a pale mint gun with two thick grey barrels clamped together

    Slowing mist

    Cryo Sprayer

    Freezing mist bogs enemies down and buys your towers time.

  • Disc Launcher: a grey gun with a long round barrel and a thin rail on top

    Bouncing saw

    Disc Launcher

    Saw discs slice through a line of foes and bank off walls. Find the angle.

  • Plasma Orb: a magenta gun with a glowing pink orb at the muzzle

    Wide plasma

    Plasma Orb

    Drifts slowly, then scorches a wide area where it lands.

  • Sonic Driver: a small purple pistol with dotted energy rings at the muzzle

    Shield-breaking push

    Sonic Driver

    A sound wave that cracks shields and shoves foes back.

  • Gravity Mortar: a long purple launcher with two dotted rings near the muzzle

    Pull-and-crush field

    Gravity Mortar

    Drags enemies into one spot, then crushes them all at once.

  • Volt Bow: a cyan crossbow-style gun with a dark bow and a bright string

    Electric arrow

    Volt Bow

    Draw and release: the arrow pierces a whole line and stuns its target.

Towers

  • Repeater: a white-and-grey gun turret on a stepped round base

    T01

    Repeater

    The basic rapid-fire tower. The valley's first line of defense.

  • Rocket: stacked grey and white discs on a round base

    T02

    Rocket

    Slow, but its rockets hit an area. Breaks up crowds.

  • Tesla: a faceted dark crystal coil with a glowing white core on a small base

    T03

    Tesla

    Electricity chains between nearby enemies.

How it plays

  1. Fight

    When the wave comes, shoot the machines and dash out of trouble. Every machine you down drops scrap.

  2. Build

    Between waves, walk to a platform and build a tower for 30 scrap. Towers guard the generator while you fight.

  3. Grow

    Spend the credits you earn in the garage on new robots, weapons and helpers.

Regions

Ten regions from the valley to the Prime AI's fortress. The first two are playable, with 20 levels; the rest are on the way.

  1. Scrap Valley

    Valley Generator

    The last valley free of the Prime AI’s network. If the generator falls, the valley loses its water and light. Gather scrap, build towers, protect the generator.

    Playable

  2. Iron Foundry

    Great Forge

    The giant forge where the Prime AI cast its machines is ours now. Keep it burning and the Guardian’s new parts are forged here. Watch out for shielded machines and welders that target your towers.

    Playable

  3. Crimson Highway

    Convoy Relay Tower

    On the desert highway, a convoy waits to slip past the Prime AI’s ambush.

    Coming soon

  4. Sunken Passage

    Glass Tunnel Gate

    The glass tunnels of a coastal lab run down beneath the water.

    Coming soon

  5. Deep Blue

    Deep Reactor

    A glowing reactor on the ocean floor sends out its last signal.

    Coming soon

  6. Ice Frontier

    Polar Station

    A purple light flickers in a station beneath the ice.

    Coming soon

  7. Star Corridor

    Asteroid Beacon

    Among the asteroids, a single guiding beacon still burns.

    Coming soon

  8. Green Circuit

    Central Greenhouse

    A greenhouse grown by robots spreads its roots out of control.

    Coming soon

  9. Orbital Fortress

    Prism Ring

    A neon ring spinning in the sky guards the Prime AI’s gate.

    Coming soon

  10. Prime AI

    Data Fortress Core

    The Architect is waiting for you.

    Coming soon

From the game

1 / 7

Frequently asked questions

Is COREBOUND free?

Yes. There are no ads and no in-app purchases. Robots, weapons and towers unlock with credits you earn by playing.

Do I need an internet connection?

No. The game is single-player and fully offline; it never connects to the internet.

Which devices can I play on?

Android phones and tablets for now, in landscape. The game is in closed testing on Google Play, and we'll announce the release on this page.

How do the controls work?

On a touchscreen, your left thumb moves and your right thumb aims and fires. You can also connect a gamepad.

Which languages are supported?

English, Turkish, Spanish, German, French and Portuguese.

Do you collect my data?

No. Your progress stays on your device. No accounts, no ads, no analytics, no tracking. Details are in the Privacy Policy.

How do I join the test?

Write to support@rudbygames.com from the email address you use on Google Play, and we'll add you to the test list.