I really like the 1-bit style of the game, as well as the ability to raise the army from the dead to invade the people at the camps. One thing I would suggest is to maybe add commands for your zombies to follow so that it feels like you're truly controlling the undead like a real necromancer. Perhaps the commands could involve having the zombies surround you as a meat shield, or to choose which enemies you want to take down by clicking on them, similar to the command style of Pikman.