Deep Fear is your underwater Resident Evil affair with creatures instead of zombies, which are very well done. The action is great, the levels are great and most importantly there's an element of fear, which is good since the title is DEEP FEAR.
Gameplay is the same as R.E. where you run around solving puzzles and killing stuff. I think the real highlight has to be the game's soundtrack which suits this game perfectly. Scary fx galore set the mood nicely. You'll also need to get used to the controls which are somewhat choppy at first. The FMV sequences are great, the in-game graphics are somewhat BLEH which is something a lot of Saturn 3D titles suffer from. There are also some questionable camera angles throughout.
Survival horror fans will probably endure this one, but the casual new gamer with no oldschool background will run screaming.