Zombie: The Coil
Zombie: The Coil is a fan made game part of the Classic (Old) World of Darkness. You get to play as a "Born" zombie, not the mindless slow walking version, but more like an undead human with sentience (Eric Draven in The Crow). Rulebook and Character Sheets
Background
Story is centered around different zombies and their struggle to fight against The Coil, aka mortality. For some strange reason there is enough of these fuckers going around that they have an organization system set up with different groups with varying beliefs, the standard WoD thing of taking monsters and giving them normal organization methods.
Becoming a "Born" Zombie
So let's say you die, you get brought back to become a zombie by an Augur. An Augur can be anything from Mages trying to resurrect people, a scientist trying to make a cure to death, etc. It's a catch all term for the person(s) or being resurrecting dead people. OR you can be resurrected by an event called a Hounfar, they're somewhat random (possibly tied to important events such as the Black Plague) and can happen to such severity from one or two people being brought back to a massive zombie army. In either case, when brought back you're a Féos, the classic dumbfuck zombie that wants to eat people. Can't remember anything, but now you have an insane hunger for flesh. After this, something important happens and you're now "Born". You get a couple memories back and you can talk, think, and have full sensory ability. The event that causes this is unknown and there is only a rough 25% that Féos are "Born", but you got a new undead life to live.
Zombie Life
The only thing that reminds them of who they were are Whispers, things from the zombie's past life from voices or sights that haunt them. As they progress longer in their new life, that memory haze starts to lessen and they will remember more parts of their past life. In the meantime, the zombie will suffer Compulsions related to their previous life as well as what might have gotten them killed. In order to keep going, the zombie are going to have to eat Viscera, any meat from a person (the two types of zombies distinguish on whether you have to eat living or dead flesh). This Viscera keeps the spiritual energy called Meridians going to keep the skeletal structure and avoid decomposing further. Eating Viscera also keeps off the Feast,a cannibalistic frenzy. The Fever is the hunger for Viscera and if left unchecked can hurt the zombie.
In addition to all this, when a zombie is created there is also a spiritual being called a Lich, not the awesome kind. This Lich can't be permanently destroyed and can possess any dead thing near the zombie (this includes plants). The Lich's job is to hunt down the Zombie at their weakest moment and attack them. If they make physical contact with the zombie and latch on to them, then the Zombie is going to have a mindfuck battle called an Ordeal. The Lich will fuck with their head, bringing back memories trying to convince them that The Coil is much better than their Zombie life and will manipulate memories to accomplish that, like having a family member saying that The Coil is better than being a zombie and they miss them, all that shit. In winning or losing the Lich's possessed form will rapidly decompose and the Lich will disappear to recover from the experience.