Space Defense: Alien Base TD

Flight log: we were orbiting a quiet forest planet when an invasion ship opened fire. The shuttle is down and badly damaged, and the rescue call will take a long time to answer. Night is falling, and something is moving between the trees.

Space Defense: Alien Base TD is a sci-fi tower defense game built around one crashed shuttle. Slot turrets into its sockets, watch the wreck grow into a fortified base and hold out against 100 waves of alien creatures, machines and boss ships until rescue arrives.

A BASE THAT GROWS AT THE CRASH SITE
• The shuttle rebuilds itself through five levels: Wreck, Camp, Outpost, Base and Citadel
• Each level straightens the hull and adds thruster pods, habitat modules, a greenhouse, a command deck and new turret sockets, up to 12
• A Defense Ring surrounds the base, from scrap barricades to a glowing Energy Shield
• Your Power Plant charges its battery while you are away

8 TURRETS THAT FIRE ON THEIR OWN
• Pulse Cannon, Flak Cannon, Rotary Laser, Railgun, Fusion Torch, Ion Cannon, Swarm Missiles and Particle Lance
• A turret in a socket picks its own targets. Tap an enemy to pull the fire onto it
• Raise each turret type to level 8 and watch it change: new barrels, armor, power cells and a gold mastery finish

THE REACTOR AND FIVE SHUTTLE SYSTEMS
• Every creature that falls in a wave charges the shuttle's reactor
• That charge runs five Shuttle Systems that come online as your base grows: Target Lock, Gravity Well, Turret Overload, Shield Dome and Albatross Strike
• Lock every socket onto one target, drag the swarm into a collapsing well, double the fire rate, seal a dome over the base or draw a line for the Albatross shuttle to bomb
• Sonic Blast clears the field when the swarm gets too close

ENGINEERING AND SHUTTLE REPAIR
• Every upgrade lives in Engineering, across four tabs: Turrets, Base, Perimeter and Support
• Targeting Computer, Radar Masts, Point Defense, Seismic Mines, Plasma Bomb, Hunter Swarm, Orbital Beam and reactor cells
• Data cores from boss ships and chapter stars permanently repair the shuttle's six offline systems, from the Orb Magnet to the Reactor Core

THE SWARM AND ITS WARSHIPS
• 26 enemies: crawling larvae, leaping hunters, armored beetles, dive-bombing flyers, scanner drones and a Sand Leviathan that rises from below
• A boss warship closes every chapter with missile salvos and drop pods
• In the final wave the Invasion Mothership calls down a Titan from orbit
• Sandstorms, power outages, dust waves and a Red Sun change the rules from one wave to the next

100 WAVES UNTIL RESCUE
• A 100-wave campaign in 5 chapters, then Endless Defense
• Earn up to 3 stars per wave, then go back for the missing ones in Star Hunt
• Every day the Incoming Signal on the home screen opens a special wave
• Forest, Desert and Ice planets change the scenery; the rules of the fight stay the same

NO CONNECTION NEEDED
• The whole campaign runs without an internet connection
• Portrait screen, built for one hand

The game is supported by ads. Optional in-app purchases include removing interstitial ads, a starter pack and the Ice planet look.

Rescue is on its way. Will your base still be standing when it lands?