Summary
Absolutely, undeniably, unquestionably brilliant.
The Good
EVERYTHING! The 3D graphics are extremely outdated and boy are they blocky! But the game itself, oh my god! This is just one of those games. You have to download it, play it yourself, see it yourself. You will not believe the good time you will have, especially all the written material lying all around the mansion. I did realize why the written stuff was so good, it's all based on an old H.P. Lovecraft book called "The Call Of Cthulu"...a bit of trivia for you!
The Bad
It doesn't run well on modern computers, remember it was made in 1992 and designed to run on 286 and 386 computers. Find and download a program I used called SLOWDOWN by Bret someone or another and slow your modern rig down to 286 speed. Now you can run by double tapping the Up Arrow. One minor thing though, because of the perspective it's a bit hard aiming that revolver and bow. Don't worry, you'll get used to it!
The Bottom Line
Download and play, you won't regret it...hell I can't even believe it even after all this time...