This early, prototype RPG was initially released in 1982 under the title of “Advanced Dungeons & Dragons” and was later re-named as Advanced Dungeons & Dragons: Cloudy Mountain to distinguish it from its sequel, Treasure of Tarmin.
Cloudy Mountain takes a different approach to adventuring than Treasure of Tarmin. In this you start by exploring a single-screen World map, then delve into dungeons that take a tunnel-like, overhead view for the dungeon-crawling. Similar in some ways to the Temple of Apshai games. The dungeons are randomly-generated each game, so are always different.
While Cloudy Mountain is not quite as good as Treasure of Tarmin it is a still an engrossing and tense RPG in its own right. Gaining a foothold is a challenge, but whether or not the game is worth it is down to individual taste.