The World of Darkness (1991 - 2004;
then 20th Anniversary 2015+)
The material here will start off as being for 2nd Edition but I will be updating them to 20th Anniversary Edition. This will include some extrapolation for Hunter, Mummy and Demon since they do not have a 20th Anniversary treatment.
General World of Darkness
House rules include information for Attributes and Abilities 6 and up, Child characters, alternate rules for use in Combat, rules on who is or is not Awakened.
Vampire: The Masquerade
Two new Bloodlines, two new Paths/Roads, a new Discipline, a new Flaw and lots of House Rules.
Werewolf: The Apocalypse
House Rules for Bastet Yava and Form Bonuses and Gurahl Rage expenditure. New Changing Breed ... the Ahuizotl: Rules for were-weasels, skunks, wolverines, otters and badgers.
Mage: The Ascension
Encouraging Vulgar Magick (for games with a lighter feel), Paradox Dice (inspired by Nightmare Dice from Changeling), Permanent Paradox and Alternate Damage Rules.
Changeling: The Dreaming
There are five Kiths, three Arts, a Realm, five Merits & Flaws, Indexes for Kiths, Houses and Cantrips including book and pages numbers to find them easily, rules for Ritual Cantrip Casting, Treasures, and more House Rules.
Mummy: The Resurrection
House Rules for Healing, Amenti Purposes and Liabilities, a variant of Academics for Ancient Egyptians, and a revised Vessel background.