An alien invasion game: stop the abductions before the mothership comes

How the invasion unfolds

The landing ship sets down over open ground, never inside a building or a plant. Its crew walks down the ramp and escorts people up it. After four abductions it calls the mothership, pulls its ramp in, climbs and turns hunter: it circles you high up and fires pairs of homing missiles that follow you round corners and over roofs, and two more hunter ships come with it.

On the ground the crew never come close. They circle about 40 metres out, always moving, and shoot short green bolts you can see fly. If you do nothing, the mothership comes and destroys everything.

Guard the nuclear plants

Two nuclear power plants stand at opposite corners of the town. If the ships blow them up, the meltdown devastates the area and turns every human into an alien. Their terminals also refill your energy while they stand.

Fight back as the hero

Play mode drops you in as the hero, with a plasma rifle that charges into a mega beam, a minigun, a railgun that calls lightning, a katana, a jetpack and more. A stealth flight called GHOST joins thirty seconds in and picks off aliens on the ground.

Other hostile forces can be sent from the panel: Terminators, the HAVOC heavy gunner, a cyber T-Rex, a cyber Yeti and more. See the guide to bosses and enemies.

Frequently asked questions

How do I stop the mothership?

Stop the abductions: after four abductions the landing ship calls the mothership. Keep the aliens from taking people and guard the nuclear plants.

Can I play alien invasion with a friend?

Yes. Two players can share a town in co-op from a desktop, each on their own computer.

Is it free?

Yes, free in the browser.

More guides

• Weapons and abilitiesEleven weapons, a jetpack, time slow and teleport.
• Bosses and enemiesTerminators, a cyber T-Rex, a yeti and a granite giant.
• Disaster sandboxEarthquakes, meteors, volcanoes, floods and a solar storm.