Cyberpunk 2077

Explore Night City as V in CD PROJEKT RED’s single-player RPG. On Windows, the independent OPEN//77 Alpha lets eligible players join community worlds.

Explore the guides Official site

GGFeed diagram showing the three versions to check before joining OPEN//77

Platforms: OPEN//77 guide: Windows PC
Players: Single-player base game
Developer: CD PROJEKT RED
Original launch: Dec 10, 2020

OPEN//77 is a third-party mod with its own servers and account. Its Windows player setup requires the exact 2.5 game build and Phantom Liberty. Start with the compatibility check, then decide whether to use the public directory or Direct Connect.

Inside Cyberpunk 2077

1 guides and updates

OPEN//77 multiplayer

Cyberpunk 2077 OPEN//77: install the mod and join a server

Check the exact Cyberpunk 2077 build, install OPEN//77 from its own site, and troubleshoot an empty server list, version mismatch or failed join.

Nov 14, 20264 min read

Troubleshooting at a glance

GGFeed diagram. Open the image to see it at full size.

Steps for an OPEN//77 game build warning, empty list and refused server join — Find where the connection fails before changing the installation. Source.

Game facts checked Nov 14, 2026. Primary source · Steam listing. Diagrams: GGFeed.