Flipping brilliant. There are a tiny handful of games in history that have the same kind of appeal and replayability as a good board game of old. Archon springs to mind. So does this game. Brilliant, great user interface, simple, atmospheric, and just the right amount of learning curve and tension. And some of the best 3D graphics seen on the ST. Incredibly creepy trees too. Everyone must play this!
The music was 1st class - a good example of what to do with an ST soundchip. Graphics pretty impressive when it came out, gameplay well balanced - but the music really works making you more tense as you try and beat the clock. Excellent.