CapySR - WIP

A server reimplementation written in C++ for a certain anime game with star and rails. Targets the 4.6.5x beta (usually the latest). This server is in WIP, but you can still use it.

Prebuilt

Don't want to build it yourself? You can grab the prebuilt from Releases, and skip to Running it.

Requirements

Visual Studio 2026 Community (or the smaller Build Tools): https://visualstudio.microsoft.com/downloads/ In the installer, tick "Desktop development with C++". That brings the compiler, the Windows SDK, CMake and Ninja; keep "C++ CMake tools for Windows" ticked, which it is by default.
Python 3: https://www.python.org/downloads/windows/ Tick "Add python.exe to PATH" during install.
protoc: https://github.com/protocolbuffers/protobuf/releases Download protoc--win64.zip, unzip it, and add its bin folder to PATH. Pick the newest normal release, not an -rc one.
The Python protobuf package, which is required. tools/gen_proto.py imports google.protobuf, so the build fails without it. Install it with: py -m pip install protobuf

Build

.\build.ps1            # to build

Then find the outputs at build\bin\

Running it

Supports both CN and OS client. You can get the latest client here: CN or OS. Recommends you use 7z to extract.

Copy launcher.exe and hkrpg.dll from launcher folder inside CapySR and paste them inside your client folder (Thank you Reversed Rooms)
Start the server: build\bin\capysr.exe (capysr.exe if you use a prebuilt).
Run the launcher.exe as administrator.
Log in with any account name and password; the SDK routes accept anything.

Delete data/player.json to start over from the defaults in config/config.json if needed.

srtools

The server also supports https://srtools.neonteam.dev/!

Credit

capyb2222
Various other server for references.

Troubleshooting

You can create an issue in this repository, but it is not guaranteed I will be there to help.

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