This game is a reworking of Adventure, and was released commercially by Level 9.
It's generally similar to Adventure, with the dragon puzzle made easier, but it has a much bigger endgame where you have to save hundreds of elves (but your actions save about a hundred at a time).
It has graphics that add a lot to the game, even though they are nowhere near as good as Magnetic Scrolls.
Gargoyle plays level 9 games, so if you want to try this out, it may be a fun way to play the original Adventure game.