Magna Carta is a Korean RPG for PC. It's quite popular among a certain group of RPG fanatics, but unluckily there's not a translated version of this game. As War of Genesis, another similar game from the same creators of Magna Carta, this game will probably never be released and/or distributed for the Western fandom. People who played this game got their copies from Korean stores.
If you want to know more about it, try taking a look at the official site
here.