Philosopher's Quest pioneers the concept of a "pure puzzle" IF-- games whose emphasis is on (very difficult) puzzle-solving than on plot and character development. The parser is very primitive, and won't recognize even common verbs such as EXAMINE (curiously, every Topologika game suffers from this, even years after the original parser was coded). This makes the solution to the first puzzle even more frustrating (hint: try to GET something that will help you out, though you can't see it anywhere in the description. Yeah, that's why it's a ridiculous puzzle). The game does have good writing and some clever puzzles, but you'll likely be too frustrated with the parser to get much enjoyment out of it.