s&box isn’t Garry’s Mod 2. It’s built to eclipse what was possible before — not just modernise it.
We’re using Source 2 and everything we’ve learned from Source 1, Garry’s Mod, Unity, and Unreal to create a modern, intuitive, moddable game development environment.
Like Rust and Garry’s Mod, this is a long-term project. We’re building the platform we want to use ourselves — something we’ll work on and improve for the next couple of decades.
Play hundreds of community-made games — from shooters 🔫 and platformers 🧗 to puzzlers 🧩 and racers 🏎️.
Team up with friends 👯♂️ right from the main menu and jump into any game — together.
No installs. No subs. No addons. Just click ⚡ and play 🎮.
Create your own games 🛠️ and playtest instantly with our familiar scene system 🎬.
Build with our first-rate C# API — easy for beginners, powerful for pros 💪.
/// <summary>
/// Moves the object forward in the camera direction when pressing forward
/// </summary>
public class ShipControls : Component
{
/// <summary>
/// The speed to move the object
/// </summary>
[Property, Range( 0, 1000 )]
public float Speed { get; set; } = 200.0f;
protected override void OnUpdate()
{
if ( Input.Down( "forward" ) )
{
var forward = Scene.Camera.WorldRotation.Forward;
WorldPosition += forward * Speed * Time.Delta;
}
}
}Write in modern C# 13 with the latest language features — no legacy baggage 🧳.
Powered by .NET 9 and a familiar Component System — intuitive, flexible, and fast ⚡.
Enjoy smooth performance with no GC stutters 💨.
Sharing your game is effortless — just click to publish 📤. Everything uploads automatically and is ready to play instantly 🚀.
Earn real money 💰 when people play your games — our Play Fund rewards creators based on engagement, not ads or microtransactions.
The Play Fund grows with our success - so the more players the game gets, the bigger the pool will be. So far we've paid $53,033.45 !
Multiplayer is built right into the engine 🔧 — no setup needed.
Playtest your games or levels instantly with the community 🧪🌍.
See code changes take effect instantly with blazing-fast hotloading ⚡ — no compiling, no restarts.
Create your games and levels with a huge library of assets 🧱.
No downloads, no subs — just drag straight from the asset browser into your scene 🎯.
Create levels with Valve’s powerful Hammer Editor 🔨.
We’ve made it moddable — add new tools, UI, primitives, and more 🔧.
Use our visual scripter, ActionGraph, to build interactive experiences — no code, no messy chains of entities 🧩⚡.
Create unique materials and post-processing effects 🎨⚙️ with ease using our Shader Graph.
We’re committed to making VR on PC easy to develop and seamless to play 🥽🚀.
Coming soon: export and release your s&box games as standalone titles on Steam 🚀.
Completely free, no royalties, no strings. Your game, your name, your revenue 💼.