Full fledged RTS: mine resources, build defense systems, research new technologies, train units in order to attack enemy bases and complete 18 missions.
A slightly different type of defense game. Protect the galaxy from the quasi-mean Commander. Build and upgrade probes to protect your main ship while asteroids and objects fly your way. Use special abilities from the main ship, bounce asteroids off probes or distract them with a decoy. 32 levels...