After reading several comments implying that the title Sui Generis is in reference to the game's uniqueness I thought I would clarify that when we came up with it it was in reference to the player's character rather than the game itself. Part of the theme of the game is supposed to be the mystery behind your unique ability to return to life. Not that this is necessarily much better but at least it's a little less pretentious which was certainly not our intention.
Wow I like that. Everything in the world that isn't realistic needs an origin and depth. Even the title. Returning to life in games are commonplace, but no here. Maybe like "Planescrape Torment" where it's part of the story (?)
I remember thinking while playing: there are zombies, but it turns out there is a reason for zombies being there. It's part of what is going on in that dungeon. You find books and jars with liquids and corpses on dissecting tables - it gives a sense of lore and purpose for that place to exist.
That way the supernatural becomes more "magical" and special. Instead of - "Its a dungeon, of course there are walking dead".
For the game to be Low Fantasy it is necessary to have anything stand out that would stand out in the real world.
I have high hopes for this one, mates!