Orbit Defense
Build the ring. Hold the planet.
- Strategy
- 1 player
- 10-25 min
- Keyboard
- Mouse
- Touch
Satellites circle your planet on three rotating orbits. Place lasers, missiles and shields, upgrade them with credits from every kill, and stop each drone wave before it breaks through.
Orbital mechanics
Satellites keep moving, so coverage shifts as they circle.
Three satellite roles
Lasers for speed, missiles for swarms, shields for the planet.
Know what is coming
Every wave is previewed with its drone types and approach lanes, so you can build where it matters.
Story WorldsTower defense
Gameplay
How to play
Keyboard
- 123
- Choose laser, missile or shield
- Click
- Place on a slot, or select a satellite
- ←→↑↓
- Move the slot cursor
- Enter
- Place, select, then upgrade
- UDel
- Upgrade or sell the selected satellite
- Space
- Start next wave
- Esc
- Pause
Touch
- Tap slot
- Place the chosen satellite
- Tap satellite
- Upgrade or sell
- Start
- Launch the next wave
Difficulty
- OutpostSturdier planet, more credits, smaller waves
- BastionThe intended defense
- Last LightTougher drones, bigger waves, short build time
Your records
No records yet
Play a round and your best waves and stats will show up here. They are saved in this browser.
Play Orbit DefenseAchievements0/4
- Holding PatternSurvive 10 waves.Locked
- Fortress WorldSurvive 20 waves.Locked
- Full RingFill every slot on an orbit.Locked
- Not a ScratchClear a wave without planet damage.Locked
