A 3D game engine for developers looking for more advanced and friendly capabilities.
- C++ Engine: Lightning fast performance and availability.
- ECS-driven: Entity Component System in the underlying engine.
- Embedded Scripting: Luau and TypeScript/JavaScript for high-level scripting and programming.
- C++ Bindings: Many C++ libraries with scripting bindings for all of your needs.
- Node Systems: Integrated node systems for graph-based operational work. Works like Blueprints.
- Multi-Deployment: Play singleplayer, LAN, Peer2Peer and online. The architecture supports them all.
- Sandboxed: You download the engine then play any game.
- Multi-Platform: Windows, Linux, MacOS, Android, IOS and VR.
- Permissive License: You can do a lot of things with this engine, with attribution of course.
| Read | For |
|---|---|
| RUNNING.md | every way to build and run the client, the server, a single test and the tools |
| CONTRIBUTING.md | building from a fresh clone, and what is expected of a pull request |
| docs/CODE_QUALITY.md | the completion checklist - run it before opening one |
| docs/CODE_FORMAT.md | naming, includes, and what a comment is for |
| docs/CODE_DOCUMENTING.md | where a comment ends up in the generated reference, and the tags |
| AGENTS.md | the four rules, and how AI is used here |
| ROADMAP.md | what is built, what is next |
| docs/RELEASING.md | the version scheme, and how a tag becomes a download |
| docs/DEFERRED.md | deferred items from ROADMAP.md that need to be revisited |
| SECURITY.md | the threat model, and reporting |
Each mono.X folder also carries its own AGENTS.md with the invariants
specific to it. Those are the ones that catch real mistakes, so read the one for
whatever you are about to change.
Pushing a vX.Y.Z tag builds the release preset on Linux, Windows and macOS
and publishes what it built to the GitHub releases page:
- Linux: a
.tar.gzof all four programs, plus an.AppImageeach for the client and the studio - Windows: a
.zipof all four programs - macOS: a
.tar.gz, unsigned and untested
Linux is the platform this is developed on. Windows compiles but has never shipped, and macOS has never been run, so neither one holds up a release.
Development builds and media are still in the discord server below.
Current Version: v0.18.0 Project Start Date: 1st August 2026
Versions are v[major].[minor].[patch]. Everything before 1.0.0 is a
pre-release with no compatibility promise.
The number lives in one file, VERSION, and everything derives from
it - the build, the artifact names, and --version on any program:
$ client --version
client 0.18.0See docs/RELEASING.md for what each number means and how a
release is cut, and ROADMAP.md for what is in each one.
Led by @SPOOKEXE
Maintained by open-source contributing developers, especially those coming from the Roblox community.
Heavy usage of AI models for fast development iteration. Refer to AGENTS.md and CONTRIBUTING.md for more information.
Refer to ROADMAP.md for what was done and we plan to do.
More on the discord server in the links section.
