A strategy/simulation base management game, Similar to DF in style and gameplay, but with the Undead! Every world generated has it's own unique, in-depth histories and geography. The history of a world should play a major part in game play, For example, One of your soldiers refuses to work with a fellow survivor because of a some terrible past event that his ethnic group/race/nation/ideology committed against his people. The "Plague" would either be random or customized by the player, as a form of difficulty setting. You could have anything, whether Romero-esque shamblers, to vampiric monstrosities. The species you play as is also procedural generated, As to create variety between playthroughs. I fyour a new player, it would be advised to embark to your site before the outbreak is out of control, to give your men a headstart on defenses. Or, if you are confident in your position as the Ubermensch, you'll set off during the point of no return, where the Dead control most of the landscape. Realism will be a big factor, crops will have to planted and harvested according to the seasons, firearms will need maintenance, and many other important task that would confront a post-apocalyptic settlement. You can decide to send out broadcast to attract survivors, but these broadcast could lead bandits right to your door step as well. Combat will be realistic, with limbs severed, tendons torn, muscles hacked, and throats ripped out. Specific orders can be given to the militia to aim for certain body parts, which will come in useful when dealing with traditional undead. There is a LOT more i would like to say but I think you guys have a general gist.