Orbitwall
EN
  • Browser game
  • Free
  • No download

Space tower defense

Orbitwall

Defend your planet against endless waves of asteroids and alien ships.

Build satellites on three orbits, upgrade them and hold the shield as long as you can. Free, no sign-up, right in your browser – on your phone and your computer.

Welcome back

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Free · no sign-up · phone & computer · 15 runs played today

The story

The last ring

  1. Aurora, the last colony

    At the far edge of the galaxy orbits Aurora – the last planet where people still live free. Oceans, forests and cities whose lights shine far into space at night.

  2. The belt breaks

    An alien signal has thrown the system’s asteroid belt off balance. Rocks are falling towards Aurora – and in their shadow, the ships of an unknown fleet are closing in.

  3. The Orbitwall

    The colony answers with its last line of defence: a ring of satellite towers on three orbits. Lasers, rockets, frost fields and railguns together form the Orbitwall.

  4. Your command

    You take over the orbital defence. Every wave is harder than the last, and every fifth wave the fleet sends a mothership. How long will Aurora hold?

Take command

Four towers, three upgrade levels

Combine fast lasers, explosive rockets, slowing frost fields and the piercing railgun.

  • Laser

    Fast, single target

  • Rocket

    Area damage

  • Frost field

    Slows enemies

  • Railgun

    Slow, very high damage

All tower stats

What is coming for you

  • Asteroids

    Slow, tough and in large swarms.

  • Alien ships

    Fast and agile – they weave from side to side.

  • Splitter asteroid

    Bursts into three fast fragments when destroyed. Stop it far out.

  • Drone swarm

    Four nimble drones at once. Splash damage and frost clean up.

  • Armoured cruiser

    Heavy armour shrugs off weak hits. Railgun and frost crack it.

  • Boss

    Every fifth wave: a mothership with massive armour.

All enemies in detail

How it works

  1. Build

    Tap a build slot on one of the three orbits and pick a tower.

  2. Defend

    Your towers fire on their own. Kills give energy for more towers and upgrades.

  3. Level up

    Experience unlocks new towers, stardust buys permanent upgrades.

Read the guide

Leaderboard

This week

  1. 1 TeeRiese Wave 31 · 23030
  2. 2 Mia123 Wave 27 · 16580

All time

  1. 1 TeeRiese Wave 31 · 23030
  2. 2 Mia123 Wave 27 · 16580

Full leaderboard

How long will your Orbitwall hold?

A run takes about ten to fifteen minutes – longer if you are good.

Play now