Defend your Orbit by building up an impenetrable stronghold and hold back the enemy waves! Are you ready for 34 challenging levels? Focus on staying alive rather than chasing down every enemy. Your Orbit has 40 lives and can be easily repaired, while you only got 3. Only killing will earn you money; so don’t just build walls and let the enemies collide, you will soon run out of money. Build strategically; build non-permeable walls under your turrets, if you’re afraid of shooting them. Also, an Amplifier above a Turret is also a good idea. Terrific fun awaits when you play Orbitron!