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GateKeeper

GateKeeper adds proper access control for multiplayer servers — no more random joiners or griefers.

It uses a server-side whitelist (by SteamID) so only approved players can connect.
No client mod is required for normal players.

Always back up your world before enabling new mods!

• SteamID-based whitelist — secure, server-side enforcement
  
• Easy admin workflow: /whitelist enable, have players join once, then /whitelist approve-last
  
• Emergency lockdown mode and rate-limited join notices
  
• /whitelist reload safely re-reads edits to whitelist.json - if parsing fails, GateKeeper keeps the old settings and backs up the broken file

If you see it listed as a “client mod,” that’s just how Steam categorizes things.
The server still controls access — but installing it on your admin client makes the commands appear in your list.


GitHub: https://github.com/butterflysky/necesse-gatekeeper

Include server logs and your GateKeeper/ files when reporting issues.