Command a Rag Tag fleet of Grimalkin Vessels against the evil from Beyond. Lead your Grimalkins to Victory or Suffer Ultimate Defeat and lose earth to the greatest evil known to Grimalkin-kind the Evil Ancient Space Faring Empire.

Grimalkin Solar Defense Force is a game about planning each tactical retreat and achieving victory against overwhelming odds as the Evil Ancient Space Faring Empire Decimates your forces. The game is set 6000 years into the future and an Evil Ancient Space Faring Empire that seeks to reclaim their ancient home world from the Mutated House Cats turned a Sentient Space Faring 80's Retro Race known as Grimalkins who happen upon them at the Edge of the Sol System. Grimalkins fought bravely against the initial wave but what remained of Admiral Fluffy Duffy's fleet is Unknown. All that stands between earth and utter destruction is the Grimalkin Solar Defense Force and their nigh impervious Hyper Field Barriers. As the sole commander of the Grimalkin Defense Force you are tasked with preparing the Hyper Field Defenses, its fleet, and prevent the Evil Ancient Space Faring Empire from reaching Earth.