Galactic Empire (1980)(Broderbund)[cr]
Galactic Trader (1980)(Broderbund)
Galactic Revolution (1980)(Broderbund)
Galactic Attack (1980)(Siro-tech)[cr]
Galactic Attack (1980)(Siro-tech)[cr][a]
Zork I – The Great Underground Empire (1980)(Infocom)[bin]