Cyberpunk 2077 shipped as a single-player game and, nearly six years on, that is still what it is. Night City has one occupant. A small independent team is now building the layer that would change that — not a co-op mod, and not one official multiplayer mode, but a platform that lets anyone stand up a dedicated Cyberpunk server and decide for themselves what happens inside it.
The project is called OPEN//77, and the fastest way to explain it to this audience is the comparison the team uses itself: what FiveM did for GTA V, but inside Night City. That is an analogy and nothing more — OPEN//77 is an independent project with no affiliation to FiveM, Cfx.re, Rockstar Games or CD PROJEKT RED — but it gets the shape across in one line. Infrastructure for a whole ecosystem of independent servers, rather than a single multiplayer world. Communities run the servers. Developers write the resources. Players pick where they want to spend their evening.
About OPEN//77
OPEN//77 is an independent community project. It hooks into a retail copy of Cyberpunk 2077 — version 2.31 with the Phantom Liberty expansion is the stated requirement — and adds a native client module plus a dedicated server that speak a custom replication protocol between them.
The server is authoritative. That single design decision is what separates this from the loose peer-to-peer co-op mods that have circulated for years, and it is the reason the project describes itself as a platform rather than a mod. The server decides who lives in the world.
What actually replicates is broader than most people expect at this stage. Player movement, animation and emotes sync between clients. Gunfights, melee and grenade flight are synchronised, with combat audio carried across. Vehicles replicate in full, including drivers, passengers and authoritative vehicle damage. Time of day, weather and world destruction are shared world state rather than per-client cosmetics.
The server model
Dedicated servers run on Windows and Linux as versioned builds, with a first-run setup wizard that walks an operator through licensing and configuration. Hosting is on your own hardware or a rented box, which is the model most people reading this already run on.
Administration goes through a web panel the team calls Warden. It handles config editing with validation, announcements, scheduled restarts, multi-user access with custom roles, and a full audit trail. The part that will matter most to anyone who has spent a Saturday restarting a box: Warden supports live Lua resource uploads that hot-reload without a restart.
Player-side, an account system with email verification and password reset sits behind a launcher that handles browser-based authentication, game verification and signed auto-updates. Direct connect works through open77:// deep links, so a server can hand a player a join link the same way any other platform would.
What server owners can build
Scripting is Lua 5.4, with client-side and server-side runtimes and a documented API. Resources run in isolated Lua VMs with permission-gated APIs, and MySQL bindings are available for persistence. Interfaces can be built in HTML, CSS and JavaScript through a Chromium-based WebUI layer, which means an inventory screen or a job board is a web app rather than a fight with the game’s own UI.
A freeroam gamemode ships as a reference implementation to build from. Everything else is open: roleplay cities, racing leagues, PvP and deathmatch, pursuit and police-versus-runner modes, survival, social servers, or something nobody has thought of yet. OPEN//77 does not dictate the game mode. Server creators decide their world’s identity.
For anyone already running a FiveM or GTA RP community, the transferable skills are obvious – Lua resources, a permissions model, a database, an admin panel, a server browser. The unfamiliar part is Night City, not the stack.
Where the project stands
This is the important caveat, and the team is upfront about it. OPEN//77 is in active pre-alpha development and private testing. There is no public alpha open right now, there are no public servers to join, and the team has not committed to a release date. The server directory opens when the public alpha does.
What does exist is a public Windows launcher, published documentation, and a development log the team updates most days – recent entries cover ranked pursuit, deathmatch with bots and ratings, battle royale loot and revives, race systems, third-person progress, persistent wardrobe, native voice chat and pilotable aerial vehicles.
Conclusion
Whether a platform mod for a single-player RPG can build the population it needs is a genuinely open question, and one that only gets answered after the alpha opens. But the groundwork being laid here is the kind server operators recognise: authoritative servers, scriptable resources, hot reload, a real admin panel.
If you run a community and you want a look at the stack before the doors open, the project is taking developer alpha signups now. Documentation is at open2077.net/docs, the server creator guide is at open2077.net/create, and the Discord is at discord.open2077.net
