In ages long past, the Master taught you the dark secrets of undeath. You could no longer perish, and as long as you had fresh body parts available, neither could your loyal servants - who were coincidentally made somewhat more loyal by the zombification process. But now the Master has fallen! ...Again. And this time those vile heathens have taken the inconvenient extra precautions of separating and inhuming some integral pieces of his unliving remains.
In these dire times, one has to look after his own, and you're a necromancer who is more dangerous than most; you're a necromancer with a business plan. Your zombies will dig up graves and loot valuables, and while they're at it, they'll grab fresh body parts so you can make more zombies to dig up more graves. Sounds good, right? Unfortunately, it's so good that other necromancers are after the same cemeteries you are!
Players start with zombies of varying values. They take turns placing zombies in specific location to "dig" up graves, steal from opposing laboratories and vaults, and to attack other player's zombies to try and prevent them from digging or stealing (and possibly dismember the opposing zombie beyond further use).
Once all the zombies have been placed, zombies still in position will steal body parts or treasure from opponents, and those set to dig will dig the row, column, or specific space of the graveyard they are assigned to. If you are competing for spaces in the graveyard (which is the norm), players compare the combined brainpower of their digging zombies, and the higher value gets to the contents of the grave first.
Then you may use your new-found corpse pieces and equipment to assemble new zombies to do your bidding!
The goal is to have the highest total in treasure and unused body parts at the end of the game.