Astrabide

Fifty waves on every map, five bosses that rewrite the rules mid-fight, then Endless. Build your own maps, choose your towers carefully, and hold the line.

The swarm pours from a rift that cannot be closed. Between it and everything behind you stands one line of automated guns. Hold it.

Astrabide is a sci-fi tower defense game built on hard choices. Every tower has a job, every enemy has a counter, and the wrong build breaks at the worst possible wave.

SIX TOWERS, NO EASY ANSWERS • Pulse Cannon — cheap, reliable, single-target fire • Arc Tesla — chain lightning, and one of only two towers that can hit flyers • Cryo Beam — slows everything in range to buy you time • Nano Swarm — area damage that sees cloaked infiltrators • Shield Pylon — powers up every gun around it • Railgun Silo — long-range slugs that pierce everything in their path Upgrade every tower along two paths, three tiers each.

ELEVEN ENEMY TYPES Armored crawlers shrug off weak hits. Cloaked wraiths slip past most sensors. Flyers glide over ground fire. Shielded guardians, field-repair drones, splitting swarms, exploding behemoths and capital-class dreadnoughts each test a different part of your defense.

FIVE BOSSES THAT CHANGE THE RULES Every tenth wave, a command-tier war machine breaches the line: one that repairs itself under fire, one that splits in three and reassembles, one that turns immune to your towers mid-fight. Learn their phases or lose the base.

FIFTY WAVES, THEN ENDLESS Five campaign maps, from a derelict lunar outpost to the alien hive core, each with fifty scaling waves across three difficulties: Normal, Elite and Extinction. Clear wave 50 and keep going. Endless never stops.

BUILD YOUR OWN MAPS Draw a route with your finger, place obstacles, choose one of seven color themes with its own music, write a briefing, and test-play it. Every custom map gets the full fifty-wave campaign and Endless.

AND MORE • A Scouting Report that shows exactly what the next wave holds • A Codex of every enemy, tower and boss, unlocked as you meet them • Tech Tree upgrades that carry across every run • Resume a run right where you left off • Game Center leaderboards for every map and difficulty • An original soundtrack • Built for every screen: iPhone, iPhone Duo open or closed, and iPad in any orientation or a resizable window, with a board that turns to fill a tall screen • Color-blind mode

No ads. No in-app purchases.

Hold the line.