Hey look, it's one of these again! I actually still have a list of these posts to crack on with, but this is the one that has received several requests now, so here we go. Remember, guys, please don't take these posts too seriously - they serve only to illustrate some of the vagiaries of fashion within the scene and are not intended to function as fashion or lifestyle templates. ;-)
Gore Goth, or horror Goth, is less of an established style (at least that I am aware of) and more a tendency towards costuming and accessories often inspired by an interest in horror movies (especially of the gore genre, unsurprisingly), literature, music and artwork.
It's rare that the word 'costume' is used to describe an element of Goth style, but many of the outfits Goths put together in this style could possibly be described as such, due to the use of props like face paint which are not an element usually seen in Goth fashion.
However, not all of these outfits are 'costumes'; some horror aficionados simply use bigger events like the Wave Gotik Treffen (where most of the images linked in this post were taken) to push the boundaries of their style (most commonly seen in deathrock and Industrial fans) and/or emulate the stage attire of favourite bands by decking themselves out in fake blood, torn clothing, straitjackets and surgical masks.
Such outfits run the gamut from the simple (but time-consuming; note the safety pins!) to the theatrical and can clearly be considered one of the most shocking and potentially offensive ways to dress within Goth style - which is probably why such gory get-ups are rarely seen outside of large Goth events or themed gatherings, except, of course, at Halloween. The outfits and accessories are often tongue in cheek or darkly humorous (e.g. Kreepsville666's 'cleaver' clutch bag); even the more provocative costuming is generally intended for a bit of fun and to turn heads amongst other Goths (not always easy at larger events when everyone has pulled out all the stops!).
Horror themes have been an underlying current throughout Goth culture since the opening bars (I just typed 'bats'... heheheh) of Bela Lugosi's Dead, although it should be noted that not all Goths have an interest in the genre, and this style takes these influences a step further, invoking imagery from B-movies and 'splatter' films rather than the frills and jabots of, say, Interview With The Vampire.
As previously noted, whilst you may see the occasional romantic Goth giving a nod to the vampire genre with a bloodstained blouse, this look is most commonly seen amongst Industrial and deathrock enthusiasts, whose bands of choice are the most likely to go about clad in similar styles and whose lyrics often feature horror themes.