Survival is determined by how well the settlement handles "The Onslaught" at night:
Researching new technologies is not optional; it is the only way to scale your defense against the increasing power of the undead. Focus research on:
: Mid-to-late game requires the construction of markets and banks to manage the settlement's economic health and fund expensive military upgrades. III. Defensive Strategy and Military Oversight
: Increasing the output of existing mills and mines.