This genre is linked to pretty much all the genres mentioned previously and vice-versa; most horror genre features some amount of gore in it. This special genre however, is for films that have a special emphasis on the horrible, the bloody and the gross.
Splatter is the default term to define gory films. Emphasizing on gruesome scenes, splatter films slightly differ from torture films in that they use graphics and gory scenes within a story that is not centered on the torture itself.
Blood Feast (1963) The Last House on the Left (1972) I Spit on Your Grave (1978) Battle Royale (2000)
Strongly related to the previous sub-genre, the torture films actually focus their story on the torture itself. Whether it has a goal (like in Saw or Martyrs), or for pure pleasure (Hostel, Guinea Pig), these films often relate the story of mad people and the poor innocents that meet them.
Guinea Pig I & II (1985) Saw (2004) Hostel (2005) Martyrs (2008)
Shocking & Disturbing
This sub-genre classifies the movies that go further torture and splatter, and that really make a point of showing the most disgusting and sick things that can exist. This sub-genre often treats themes such as rape, necrophilia, coprophilia, etc..
Salo (1976) Nekromantik (1987) Dead Girl (2008) A Serbian Film (2010)
Cannibalism is one of the favorite themes of the exploitation/extreme cinema. Most of these movies come from the Italian horror cinema and were produced during the late 70’s-early 80’s. They always include extreme violence and cruelty, including the killing of animals.
Man From Deep River (1973) Last Cannibal World (1977) Cannibal Holocaust (1980) Cannibal Ferox (1981)
Psychological Horror & Thriller
Psychological Horror & Thriller is the part of horror that feels the most real since it features the work of humans, either that have become crazy or that are stranded in exceptional situations. Often linked with the thriller genre, these films build most of their horror around psychological tension.
Demented & Madness
The human mind is something we will never truly understand, and this genre is here to remind us. Often close to the Slasher genre, these films are nevertheless different in that they do not emphasize on the killing but on the madness (induced by supernatural forces or otherwise) of the character(s).
Psycho (1960) Fraitly (2001) A Tale of Two Sisters (2003) The Ward (2010)
Phobic & Survival
A sub-genre that typically puts people in a situation related to our worst fear and phobia. The most commonly used is probably claustrophobia, but modern horror tends to strand people everywhere.
Frozen (2010) 347°F (2011) The Descent (2008) Buried (2010)
Final instalment coming up: All other sub-genres!