NexusForever reimplements the WildStar server so the game can be run again

A server emulator fills the role the shut-down game servers left empty

WildStar was an MMORPG whose servers are gone, and NexusForever is a reimplementation of the server side of that game, written from scratch in C#. The project description calls it an emulator for the defunct MMORPG and states that it supports build 16042, which the README also identifies as the supported build. That build number is the anchor for the whole project, because a server emulator only works against a client it agrees with, and the requirement list names a WildStar 16042 client as something you must supply yourself. So the division of labour is clear: NexusForever provides the world, the accounts and the game logic, and the player connects with an original client. The audience is therefore two groups, not one. The first is the private server operator, a hobbyist or a small group who wants the game running again and is prepared to run the infrastructure. The second is a developer reading the code to understand how a large online role playing game is put together, since the project publishes its source under a licence that explicitly invites that.

MySQL, a message broker and .NET make it a set of services

The requirements list is where the architecture shows through, and it is a heavier one than a single-process game server. You need MySQL Server or an equivalent such as MariaDB for persistence, a message broker with RabbitMQ or Azure Service Bus, and Visual Studio 2026 because .NET 10 and C# 14 support are required. The message broker is the telling entry. A broker between services means the emulator is not one process that handles a socket and a database in the same thread, but a collection of components that talk over a queue, which is the normal way to build a server that has to scale across machines and stay responsive under load. Choosing between RabbitMQ and Azure Service Bus is the kind of decision the requirements leave open, and it tells you the code is written against a broker abstraction rather than against one product. The choice of Azure Service Bus as an option also means the project was designed with hosted cloud deployments in mind rather than only a single home machine. The repository layout backs this up, with a Source directory holding the code and an Obsolete directory for code that has been retired but kept in the tree.

The documented path to a running server is the setup guide, not the repository

There is no clone-and-run command in the repository, and the README does not pretend otherwise. Getting started points to a Server Setup Guide published on the project website, and the repository itself carries no installer script and no configuration template for the database or the broker. That is a deliberate division: the repository is the source, the website carries the operational documentation. If you are evaluating the project, the setup guide is the document that tells you how many servers, which broker, which schema and which port the world server binds to, and the repository is where you read the C# that implements it. A separate WorldDatabase repository is linked alongside the website and the Discord, which suggests that the content of the game world is kept apart from the code that serves it, so a server operator can update the data without rebuilding the service. The project is AGPL-3.0 licensed, and that licence is worth thinking about before running a public server, because it carries source availability obligations for network use that a permissive licence would not.

Master holds the binaries, game_rework holds the work

The branch structure is unusual enough to be worth describing carefully, because getting it wrong costs a new operator a lot of time. Master is described as the latest stable release, and the documentation says develop is merged into master once enough content has accumulated in develop, so master is a snapshot of work that has settled. Compiled binary releases are based on this branch, which means downloading a build is the fastest route to a running server and it does not require the .NET 10 toolchain at all. Game Rework is the current active development branch, where major refactors and updates are underway, and all pull requests are supposed to target it, with the plan being that it is eventually merged back into develop. Develop itself is struck through in the README, with the note that it was the active branch with the latest features but may be unstable, which is a fairly clear signal that the maintainers have moved off it. The default branch of the repository is game_rework. A new operator who wants a working server today should build from master or take a binary, and a contributor should target game_rework.

Automated pipelines build on Windows and on several Linux distributions

The build status section shows Azure Pipelines running for three branch targets on each of two operating systems, so a Windows build, a game_rework build and a development build exist for Windows, and the same three for Linux, where the documentation points at the .NET runtime identifier catalogue for the exact list of distributions covered. The separation of Windows and Linux builds is a practical fact for anyone deploying a server, because a server that must run on Linux is not the same artifact as the Windows one, and the .NET runtime identifier documentation is the reference for which Linux flavours are supported. The project is not archived and the last push was on 2026-10-07, so the pipelines are being fed by current work rather than by a frozen tree. The default branch of the repository being game_rework also means the pipeline badges for the work in progress are the ones that change most often. For a server operator, the relevant badge is the one for the branch you actually intend to run, and the master badge is the one that should stay green if you depend on released binaries.

Release tags stopped in 2021 while the branch kept moving

Here is the mismatch that a reader has to hold in mind. The release list shows the most recent tag as 20211011.6.Azure.Windows from 2021-10-11, with two older Travis build artifacts tagged in January 2021 and June 2020. Meanwhile the repository is not archived and the last push was on 2026-10-07. So the tagged releases are not the current state of the project, and the branch described as the active development branch is where the real work sits. The documentation is candid about the consequence, since it tells contributors to target game_rework rather than master, which means a compiled binary from master lags behind the code that is actually changing. For an operator, that splits the deployment choice in two. Take a tagged or master binary and you get a stable, reproducible server that misses recent fixes. Build game_rework yourself and you get the current code with the refactors in it, at the cost of needing the full toolchain and accepting that major changes may still be in flight. Neither option is documented as being wrong; they are different trade-offs, and the choice should be made per deployment rather than by default.

Where a server emulator is the wrong answer

The first limit is the client. Because the server has to agree with the original client at build 16042, a player who does not have that client cannot connect, and a different client build will not do. That makes the project useless to a person who simply wants to play a game and a poor fit for a team hoping to modernise the client as well. The second limit is the operational weight. MySQL or MariaDB, a broker, and a .NET 10 runtime is three moving parts before a single player connects, and the requirements specify Visual Studio 2026 for anyone building from source, which is a recent toolchain and constrains which build machines can compile the project. The third limit is that the scope is frozen by design. The server reproduces one build of one game, so features that were never in that build cannot appear, and the Obsolete directory in the repository is a reminder that the code base also carries history for systems that have been taken out. Where the project is at its best is a controlled environment: one operator, one known client, one database, and a community already looking for the game.

How a hosted WildStar server differs from running NexusForever yourself

There is a practical alternative to running the emulator at all, and it is the option most people in the community actually pick. Instead of provisioning a server, a player can join a private or community server that somebody else already operates, which is the usual shape for a reawakened MMO. The difference in approach is where the operational burden sits. Running NexusForever yourself means you own the MySQL instance, the message broker, the deployment of the world server and every patch to it, and you carry the AGPL-3.0 obligations that come with offering the service over a network. Joining an existing server means you deal with a bare client and someone else's uptime, patching schedule and rules, and you accept whatever build that operator chose to run, which may be older than the code on the game_rework branch today. The self-hosted route is the one that pays off when you want the newest code, the ability to change the data through the WorldDatabase repository, or simply the privacy of a world you control. The hosted route wins when you want to play this month and have no interest in running a database.

Editorial conclusion

Server operators who want to bring WildStar build 16042 back to a playable state, and developers who want to read a from-scratch MMO backend, are the people NexusForever is for. It is the wrong tool for a player looking for a game to install, since the project ships a server rather than a client, and it is the wrong tool for anyone who cannot supply the 16042 client, since that build is a stated requirement and the server is matched to it. Before investing a server, check three things: that you can obtain a 16042 client, that you can run the required stack of MySQL, a message broker and .NET 10, and which branch you actually want, because compiled binaries are published from master while the refactors live in game_rework. The licence is AGPL-3.0, so a hosted service you run has obligations that a private local server does not, and the last push was on 2026-10-07 while the newest release tag is from 2021-10-11.

Frequently asked questions

Official sources

1. License: AGPL-3.0
2. NexusForever/NexusForever on GitHub
3. Project website
4. README
5. Releases