Colony 7 is an original Atari 2600 homebrew game published by AtariAge: http://www.atariage.com
This is Colony 7. Jarvian hostiles sighted inbound. Non combatant personnel are retreating to shuttle bay. We are preparing to defend position. City-wide shield is active. Gun emplacements are standing by. Special Weapon is primed. We will not retreat. We will survive.
Your mission is to defend Colony 7 from the evil Jarvians. Wave after wave of enemy fighters strafe the Colony’s defensive shield, attempting to break through. You’re in command of the Colony’s defensive guns, unleashing a converging stream of laser fire at the attacking hordes. You must wipe out the invading craft before either the cannons or the entire Colony are destroyed.