Outpost defense protocol

Alien Tower Defense: Survival

The Core is under siege. Build your defense line, command advanced towers, and hold the outpost against escalating alien waves.

FORTIFY THE ROUTE · ADAPT YOUR DEFENSE · PROTECT THE CORE

Mission briefing

Every wave tests your line.

Study the enemy route, choose where to build, and tune your defenses as the assault intensifies. Each decision buys the Core another moment.

01 / FORTIFY

Build with intent

Place machine guns, cannons, missiles, and specialized defenses to cover the winding approach.

02 / RESPOND

Read the assault

Face varied enemies, airborne threats, and powerful boss waves. Rework your line as pressure rises.

03 / ADVANCE

Keep the Core online

Earn resources, improve your defenses, and push your survival record further with each run.

Snow-covered arctic military outpost with a winding defense route
Arctic Outpost · Stage 02
Hold the perimeter

Shape the defense.
Survive the wave.

A frozen military outpost, a winding approach, and the Core at the end of the line. The battlefield is yours to command.

  • Choose from a tactical tower roster and upgrade your defenses.
  • Call on support abilities when the front line needs help.
  • Face escalating waves, armored threats, aircraft, and bosses.
The outpost is counting on you

Defend the Core.

Set your line. Watch the route. Keep the signal alive in Alien Tower Defense: Survival.

Return to briefing