Most official servers do not allow cracked clients, leaving you restricted to small, private groups. The Developer's Perspective
Playing multiplayer on a cracked version of Project Zomboid is technically feasible using SmartSteamEmu, a virtual LAN like Radmin VPN, and careful configuration of the game’s LAN mode. The process involves tricking the game into broadcasting its presence over a simulated local network instead of the official Steam backbone. how to play multiplayer on cracked project zomboid free
Set a network name and password, then share these details with your friends. Most official servers do not allow cracked clients,