Configure your Mech and go to battle! Collect the special diamonds discovered on Mars and bring them back to base. Watch out for evil aliens or better yet, blast them back to where they came from!
Defend your invasion forces from attacking ships while they retake solar systems from a malicious computer virus. Use your special vessel, the Nautilus, to manufacture ships to assist you in the battle.
When scientists discovered a distant, naturally rich planet called the 'Bluegreen Planet', each planet sends their troops to battle for control over it. Train soldiers and build military units and structures to overpower your opponents.
In year 2222, people invented a portal. In year 2281, the first habitable planet is found. Its colonization is made through portals and it turns out that humans are not the only sentient race in the universe..