When I was a child one of the things that my friends and I used to play with were Top Trumps. These were themed packs of playing where each of the 32 normal cards in a set had ratings for various different attributes; in the case of the horror ones these were Physical Strength, Fear factor, Killing power and Horror rating, which scored between 45 and 100.
The rules were pretty straightforward, and went something like this: Each player got the same number of cards and drew the top card from their hand. One player then selected an attribute, probably the highest one of the four. Whichever player had the highest number won the cards, and then played their next card. This continued until there was only one player left.
The thing I really liked about the two sets of horror themed cards, Dracula and Devil Priest, was the garish artwork and inventive monsters, although even at that time I recognised that Dracula was more specifically a Christopher Lee Dracula. Over the years, however, I've come to realise that a lot of the monsters appear to have been inspired / taken from horror films and often just had their names changed:
The Dracula Set
Prince of Darkness – Onibaba
The Mad Magician – London After Midnight
Madman – Doomwatch
The Freak – The Reptile
Lord of Death – The Phantom of the Opera (Julian / Chaney)
Phantom of the Opera – The Abominable Dr Phibes?
Skeleton – The House on Haunted Hill?
The Hangman – The Phantom of the Opera (Julian / Chaney)
Two Headed Monster – The Thing with Two Heads
The Devil Priest Set
Colossus – The Colossus of New York?
Creature from Outer Space – This Island Earth
Fire Demon – Dr Who story The Daemons?
High Priestess of Zoltan – based on Lavinia in The Curse of the Crimson Altar?
The Jailer – Fritz in Frankenstein (Whale / Karloff)
The Living Gargoyle – based on the Martians in Quatermass and the Pit?
Zoltan – the monster in Lady Frankenstein?
Anyone recognise any others, like The Thing? Both sets are at http://www.ultimate-top-trumps.co.uk/dubreq.htm if you need a refresher ;-)