No one has mentioned the thief series!? Gah! Soon fix that ....

The thief series were damned scary; I've seen more than a few say they found them more terrifying then SS2. Garrett was so vulnerable, and your best hope of success lay in skulking unseen. Like any game which requires you to hide constantly, moving from area to area, shadow to shadow, the pressure could get very intense. The game was built to increase that tension, with the music and creature sounds feeding the emotion and refining it. The creatures themselves, the levels - simple description does them no justice.

The Cradle level in Thief 3 was infamous when the game was new.



I repeat everything that has been said about System Shock 2. I still get very nervous when I hear certain monkey noises.