It's always good to look back on some of the best horror games the industry has had to offer through the years and decades. Some titles have left a permanent mark, their legacy cemented by the effectiveness of their scares. Others may be lesser known but are no less terrifying despite their mechanics and presentation. Let's look at 15 of the best horror games of all time. Be warned though - several of these games aren't for the squeamish or faint of heart.