Hokuto no Ken Online

This game was to be an MMORPG title that was released on the PC on the 24th of July 2008 whereby the player can select a class(possibly choosing either a Hokuto or Nanto fighter) and roam around the Hokuto No Ken apocalyptic world.

After a year, an expansion was added called "Hokuto No Ken Online Heroes" which gives the players the ability to play as the main characters from the manga.