m199h was one of the first computer role playing games. It was available on the PLATO network, the name deriving from the foreign language lesson space the game was hiding until it was deleted from the network by moderators. Consequently little details about the game survive to this day.
The game bore striking similarities to dnd and featured advanced character sets serving as graphics for the monsters in the game, including a flying dragon picture. Unlike later RPGs on the PLATO network it was a single player game.