Space Defense
Defend a colony on an alien planet with 300 coins and six tower pads.
About This Game
Defend a colony on an alien planet with 300 coins and six tower pads. Each run deals three of five space turrets: rapid PLASMA, instant LASER, splash MISSILE, slowing EMP and piercing RAILGUN. Every deal includes a starter and an answer to armored invaders.
Build your first tower to start. Two invasion lanes merge near your base. Scouts race ahead, while armored brutes resist plasma and laser fire. Calm, build-up, surge and supply breaks alternate; later enemies become tougher and faster.
Upgrade turrets for damage and range, or reinforce the base to heal up to 55 HP, add 30 maximum HP and unlock your second and third turret types. Score comes from survival and kills. The invasion is endless: mix firepower and crowd control to beat your record.
Game Tips
- 🛡️ Armored brutes resist plasma and laser; missiles and railguns bypass their armor
- 🌀 EMP slows a whole area — combine it with damage towers near the junction
- 🔧 Save coins for base repairs; supply coins arrive during BREAK
Controls
- Tap +, then a turret in the bottom or side menu: build
- Tap a turret, then its upgrade: strengthen it
- Tap the colony base, then its upgrade: heal and unlock turrets
- Your first build or base upgrade starts the invasion
- Arrow keys / WASD: move between pads and the base; choose a menu option
- Space / Enter: select or confirm
- Esc: close the build menu
Game info
- Players
- 1 player
- Developer
- PLAYMINIT — original game, made in-house
- Released
- 2026.05.06
- Last updated
- 2026.11.05
- Version
- v1.8
- Scoring
- pts · Higher is better
- Monthly ranking
- Supported
- Controls
- Touch · Keyboard
Dev Log
- v1.8
Behind-the-scenes cleanup
- No changes to gameplay
- v1.7
Planetary defense
- New rotating space turret heads, colony base and alien planet terrain
- Added 10 walking alien species with fast scouts and armored beasts
- Distinct laser, piercing railgun and slowing EMP attacks
- Full keyboard controls, reliable pausing and lighter mobile graphics
- v1.6
Behind-the-scenes cleanup
- No changes to gameplay
Earlier versions (6)
- v1.5
Score rescale
- Scores rescaled to a tenth of the old values
- v1.4
Keyboard controls
- Added Space or Enter to start or restart a run
- v1.3
Endless mode
- New endless mode with calm, build-up and surge phases
- Score now comes from survival time and kills
- Removed the level 3 upgrade cap
- Fixed Play Again not starting a new run
- v1.2
Turret art
- New artwork for all five turret types
- v1.1
Leaderboard
- Added a leaderboard ranked by the wave reached
- v1.0
First release
- Defend your space base from alien invaders across 5 waves
- Build turrets from 3 random types dealt each run
