Open77 is a community-made, unofficial multiplayer mod for Cyberpunk 2077 that lets you play online on community-run dedicated servers. It is in alpha, requires Cyberpunk 2077 version 2.31 with Phantom Liberty on 64-bit Windows, and access is obtained with the /alpha apply command on its Discord. It doesn't offer campaign co-op: it's a sandbox for RP, racing and PvP. Here is how it works and how to create your own server.
Key takeaways
- Open77 is not a public launch: it's an alpha with access on request, so expect bugs and API changes.
- The project works as a platform of dedicated servers scripted in Lua, in the spirit of FiveM for GTA V, rather than as a simple co-op mod.
- The modes already delivered cover roleplay, freeroam, racing, deathmatch, battle royale and a ranked Pursuit mode, with native voice chat.
- Campaign co-op is not supported, and the project is independent from CD Projekt: a legal copy of the game is still required.
Open77: what it is, and what it isn't
Open77 presents itself as an open multiplayer platform for Cyberpunk 2077, built around a native client, community-run dedicated servers and Lua-scriptable resources. The player installs a launcher, picks a server from a list and connects. The server's resources download automatically on arrival.
The project is independent. It is neither affiliated with, endorsed by, nor sponsored by CD Projekt, and it states that playing on it still requires a legal copy of Cyberpunk 2077. Pirated copies are neither supported nor accepted.
Why Cyberpunk 2077 never had official multiplayer
As early as 2018, CD Projekt Red mentioned the idea of an online game, then an independent AAA-scale multiplayer project. In early 2021, dataminers spotted traces of cooperative heist and deathmatch modes in the game's files. After a difficult launch in December 2020, the studio reassigned its teams to fixing the game and to Phantom Liberty, then abandoned the multiplayer project in November 2022, according to the specialized press.
The engine, REDengine, was never designed for networking. That is the gap Open77 and CyberMP are trying to fill from the outside.
The game modes already delivered
- Roleplay: RP cities with their own rules, economy, jobs and staff, including the CyberRoleplay network (one account, several servers), announced as under development.
- Freeroam and racing: free activities, races, PvP and emotes.
- Deathmatch and battle royale: matches with bots, leaderboards, loot and revives.
- Pursuit: an asymmetric chase mode, now with rankings and native voice chat.
Synchronization, the project's central point
The devblog announces synchronized AI traffic since September 24, drivable vehicles, synchronized doors and a combat synchronization pass on September 30. On X, the team claims to have synchronized more than 200 vehicles at the same time. That is a demonstration by the team, not a performance guarantee on any server.
Playing on an Open77 server: requirements and access
- Own Cyberpunk 2077 version 2.31 with the Phantom Liberty expansion, on 64-bit Windows 10 or 11.
- Join the official Discord and run the
/alpha applycommand to request alpha access. - Download the launcher, sign in and let the tool verify the game.
- Pick a server in the built-in browser and click connect. The server's resources download on their own.
Our take
Open77 shouldn't be judged as a finished game, but the project's pace is a serious signal: one post per working day, a public launcher, hosting tools open to every alpha member. For a player who wants structured RP, it's better to wait for stable servers to emerge. For a server creator, it's the right time to get ahead, as in the early days of FiveM: communities that set up early often keep their audience.
A platform rather than a mod
The most interesting thing about Open77 isn't the multiplayer itself, it's the model. On FiveM, the value of GTA V online shifted from the base game to the servers built by communities. Open77 follows the same logic: a single client, a server browser, a Workshop and an open scripting language. The base game provides the setting, the creators provide the rules.
This changes who matters in the ecosystem. Players will become loyal to a server more than to Open77, and creators who build a community, scripts and a server identity early will have a real advantage once the project leaves alpha. That's also why server directories and voting tools will become useful to this scene, as with other community-server games.
To get a server noticed, Private Server's Cyberpunk 2077 server listing plays that showcase role.
Frequently Asked Questions
Do you need Phantom Liberty to play on Open77?
Yes. The official site lists Cyberpunk 2077 version 2.31 with the Phantom Liberty expansion on 64-bit Windows as a requirement.
Can you play the Cyberpunk 2077 campaign in co-op with Open77?
No. Open77 offers community servers (RP, racing, PvP, freeroam), not synchronization of the main story quests. The specialized press describes the experience as a vast sandbox.
How do you get alpha access?
You need to join Open77's official Discord and use the /alpha apply command in any channel. That's also where alpha members follow the changelog and report reproducible bugs.
Do you need to own Cyberpunk 2077 to host a server?
According to community guides, the machine hosting the server doesn't need to have the game installed. However, each player must own a legal copy of Cyberpunk 2077 version 2.31 with Phantom Liberty, and have alpha access.
Is Open77 an official CD Projekt project?
No. The site states that it is an independent community project, not affiliated with CD Projekt S.A., and that Cyberpunk 2077 remains a CD Projekt trademark. The mod requires a legal copy of the game.
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