The Great Galactic Conflict, (GGC), was a turn based Massively multiplayer online game (MMOG) which was available in Australia around 1985.
The game was accessed through a text based dialup service from Telecom Australia known as Viatel.
GGC moves were heavily influenced by negotiations between players which formed a significant portion of the game play.
Back end software running on DOS-based PCs would take several hours to determine the collective outcome of the players' moves.
Viatel's "bulk update protocol" was used to upload and distribute the new game state to the players.