The 20 scariest and most important horror movies of all time 8 The Thing (1982) 7 The Exorcist (1973) 6 Dawn of the Dead (1978) 5 Halloween (1978) 4 The Shining (1980) 3 Alien (1979) 2 Psycho (1960.) 1 The Texas Chainsaw Massacre (1974) More items... March 3, 2023