Multiplayer mod for Cyberpunk 2077 (v2.31): RED4ext client plugin, redscript HUD, and a .NET + native UDP server (GameNetworkingSockets).
Download launcher (goes to your Downloads folder):
http://88.214.59.166:5005/api/media/RedSync_Launcher.zip
Or in PowerShell (auto-extracts to Downloads\RedSync_Launcher):
irm http://88.214.59.166:5005/api/media/RedSync_Launcher.zip -OutFile "$env:USERPROFILE\Downloads\RedSync_Launcher.zip"; Expand-Archive "$env:USERPROFILE\Downloads\RedSync_Launcher.zip" -DestinationPath "$env:USERPROFILE\Downloads" -Force; explorer "$env:USERPROFILE\Downloads\RedSync_Launcher"Then:
- Open
Downloads\RedSync_Launcherand runPLAY.bat. - When prompted, pick your username (Enter keeps the last one). Admins must match
XEROX710/lucifer420. - (First time only) install the client with
release\Install-All.batfrom the full package if RedSync is not in the game yet.
Default public server:
88.214.59.166:1337
Launch args (username is required for nametags / F7 admin):
--redsync-server-address=88.214.59.166 --redsync-server-port=1337 --redsync-username=YOUR_NAME --launcher-skip
See release/RedSync_Launcher/. Run Convert-From-XBUNIVERSE.ps1 to rename your Downloads launcher folder, install the username picker, and point Play at the VPS. Or use release/Download-Launcher-To-Downloads.ps1 / GET-REDSYNC-LAUNCHER.ps1.
Deploy helpers live in deploy/. The production host is 88.214.59.166 (UDP 1337).
| Dependency | Role |
|---|---|
| Cyberpunk 2077 2.31 | Game |
| RED4ext 1.30+ | Plugin loader |
| redscript 0.5.31+ | Scripts |
| Codeware 1.18+ | Entity spawn |
| CET + AMM | Remote appearance |
| Path | Role |
|---|---|
client/ |
RED4ext + redscript client |
server/ |
Native + managed game server |
shared/protocol |
Shared packets |
release/ |
Tester package / launchers |