The one that started it all and a darn good game by the standards of PS1 horror. While RE3 might compete with it in play control, Silent Hill has by far the best atmosphere and environments of any Playstaion era survival horror game. It's also considerably less frustrating with no inventory management and fairly straightforward brain teasers for its puzzles. The game also has excellent replay value with 5 different endings, special bonus options you unlock on game clear, and extra weapons for each clear alongside a very tough but fun to try ranking system. If you love PS1 survival horror games, you'll love this.