Sky Jaguar

Star Time "Zero Point Zero" - the first calender year of the Galactic Era. The United Federation of Earth, which has finally succeeded in bringing a unified peace to the solar system, is embarking on a galactic search for badly needed raw materials to replenish the Earth's seriously depleted resources.
At the same time, a mysterious invading fleet from the Zeifart Nebula - far outside our own Milky Way Galaxy - has wiped out Miranda, the only colonized satellite of the planet Uranus. The invaders are now menacing the Federation on Earth.
The enemy has established gigantic floating battle fortresses suspended over Earth's major oceans to serve as bases for their invasion of our home planet, and the invaders are stepping up their attack on Earth.
To counter this attack, the Self Defense Forces of a united Earth have mobilized their fleet of ultimate space fighters - the SKY Jaguars - to destroy the mammoth floating battle fortresses which are the key to the invaders unrelenting attack.

What is abandonware ?