STEEL PLATE / PERMANENT ARMOR
Crack the armor.
Heavy creatures and mechs carry permanent armor. Rail rounds bypass it. Pair long firing lanes with cryo fields to keep tough targets under fire.
OFFLINE SCI-FI TOWER DEFENSE
Beyond the last beacon, the swarm is gathering.
Build your defenses. Protect the colony. Hold the line.
16 sectors. Three difficulties. Fully offline.
01 / THE MISSION
The frontier’s outposts are under attack. You’re the commander standing between an alien swarm and the colony’s last beacon.
Hold and drag defenses onto open grid cells in tactical clearings. Plan around roads and blocked terrain, preview your range, then send the next wave when you’re ready.
Know your defenses
02 / THE CAMPAIGN
Advance through 16 distinct sectors: six in the badlands, five in the jungle, and five on the ice. Clear each world to unlock the next, with new scenery, enemies, and an original score.

Arid badlands / 6 SECTORS
A rogue mining network marches with the dune swarms. Hold the extraction routes against plated walkers and shielded salvage drones.
Start your campaign here.
Dune skitter · Ironback · Sand wraith · Rivet siege walker · Arc scavenger
03 / DEFENSE PLATFORMS
Six platforms. Three ranks each. Start with Pulse and earn the rest through sectors 1.2–1.6. Bring unlocked defenses back to earlier missions and build your own combinations.
Flame cone & burn / UNLOCK 1.6
Sweeps a short, wide cone of fire over groups. Aliens leaving the cone keep burning; the burn starts strong and fades smoothly to zero. Overlapping afterburn uses the strongest active source.
Cover a close approach. Enemies leaving the cone keep burning; the strongest afterburn fades over time.
STEEL PLATE / PERMANENT ARMOR
Heavy creatures and mechs carry permanent armor. Rail rounds bypass it. Pair long firing lanes with cryo fields to keep tough targets under fire.
ENERGY BUBBLE / RECHARGING SHIELD
Shields absorb damage before the hull, then recharge after a break in combat. Helios deals 75% extra shield damage; continuous fire and afterburn keep recharge interrupted.
04 / COMMAND ON YOUR TERMS
The entire Android game is bundled on your device. No internet connection, account, or trackers. Just you and the next wave.
Progress saves locally, with a checkpoint before each wave. Step away mid-battle and resume from the start of that wave.
Call in an orbital strike when the line gets crowded. Pause to think, adjust battle speed, and upgrade or sell your towers.
Three original planet scores, distinct enemy death voices, mechanical failures, and shield-break cues. Set music and effects independently, or mute either one.
Easy offers more breathing room. Medium brings measured mixed assaults. Hard adds heavier squads and shielded reinforcements. Saved missions keep their original difficulty.
The codex fills in as you encounter new enemies. Learn the defenses and counters of organic swarms, crystalline creatures, armored walkers, and shielded drones.
YOUR NEXT MISSION
Take command of the last line of defense.
Get it on Google PlayFor Android · Fully offline single-player
Start at sector 1.1 on Kepler-186f. Clear sectors in order, then finish every sector on a planet to unlock the next world. Earn one to three stars based on remaining colony integrity. Six platforms become available across Kepler’s six sectors.
Yes. The Android game includes its content, artwork, music, and effects on your device. It requires no internet connection or login, and your progress stays in local storage.
Drag an unlocked turret from the tray onto an open grid cell, or select it and hold the map to preview placement. Adjust your position, then release to build. Quick map taps never spend credits. Tap a placed tower to compare current and next-rank stats, upgrade or sell; tap elsewhere to dismiss. Selling returns 70% of your full investment.
Choose Easy, Medium, or Hard in Settings. Your choice applies to new missions; a resumed checkpoint keeps its original difficulty. Restart a mission to use your new setting. Stars count toward the same campaign progression on every difficulty.
Transmission interrupted. Please try again.