Summary
One of the great-grandfathers in the IF / RPG series. You MUST play this game!
The Good
Very much ahead of it's time. It incorporated real-time events (walking through a doorway or down a hall went much quicker than walking along a path in a wide open field), multiplayer support (cooperative or competitive), and it was random enough to be replayed again and again.
The Bad
The actions are executed by single keystrokes. Player 2's menu is fine, but player 1's menu is designed for the older keyboards, with the F1-F10 keys down the left hand side. This takes some getting used to for playing on today's keyboards with the function keys along the top.
The Bottom Line
This game is great to play by yourself or with another person (or even with a group of people). Lots of fun exploring, and great room descriptions. One I've come back to again and again.