Infection Free Zone – Prologue is a demo set in the opening days after survivors emerge into a world devastated by the fast-spreading “Mad Virus.” Society has collapsed, leaving cities without basic supplies and dangerous infected in abandoned buildings. The premise puts reconstruction and survival together: players establish a Zone in a location of their choosing, turning the remains of an urban environment into a place survivors can defend.
That city setting shapes the practical decisions. Players scavenge buildings for resources, adapt existing structures, and build shelters, production facilities, farms and cookhouses. The layout also matters to defense: walls, gates and towers help prepare for nightly horde attacks, while knowledge of where shops and pharmacies stood can guide searches for supplies. Combat can draw on melee and ranged weapons, vehicles, and the settlement’s fortifications. Encounters with other survivor groups add another possibility, since some are open to trade and others are hostile.
As a single-player game demo, this prologue frames its city-building and tactical defense around surviving the first days, rather than presenting a multiplayer format. The source identifies the prologue as preparation for an upcoming full version, but does not specify an exact demo scope.
