In the game, the player character visits Lord British and is instructed by him to kill certain monsters. The final mission is to kill a balrog, and after this has been accomplished, Lord British proclaims that "thou hast proven thyself worthy of knighthood".
Moria is a dungeon crawl style role-playing video game first developed for the PLATO system around 1975, with copyright dates listed as 1978 and 1984. It was a pioneering game, allowing parties of up to ten players to travel as a group and message each other, dynamically generating dungeons (instead of pre-computing them), and featuring a wireframe first-person perspective display. One of its authors, Kevet Duncombe, claims not to have read the works of J. R. R. Tolkien or heard of Dungeons & Dragons at the time development started, but he was aware of the PLATO game, dnd.