These are often "fixed" to allow users to spawn any character (like Ellen Joe or Zhu Yuan) and max out their levels instantly to test team compositions.
: Most private servers allow users to walk around New Eridu and Lumina Square with any character, regardless of account ownership. zenless zone zero private server fixed
The Rise of Zenless Zone Zero Private Servers Zenless Zone Zero (ZZZ), HoYoverse’s urban fantasy action RPG, captured millions of players with its flashy combat, stylish aesthetics, and roguelike Hollow exploration. However, the game’s live-service model—defined by stamina limits (Battery Charge), gacha RNG, and time-gated progression—led a segment of the community to seek alternative ways to experience New Eridu. These are often "fixed" to allow users to
However, for the average player, the setup complexity, legal grey areas, and severe risk of losing your official HoYoverse account make it a novelty best observed from afar through showcase videos rather than installed on your personal hardware. Instead, they write a custom server application from
When building a private server, developers do not use the official server code—they do not have access to it. Instead, they write a custom server application from scratch (often in Java or Go) that intercepts the network packets sent by the official ZZZ game client and mimics the official responses. If the client asks, "Did this gacha pull succeed?" the private server must reply with a correctly formatted packet saying, "Yes, and you won an S-Rank Agent." Major Fixes That Made ZZZ Private Servers Viable