Welcome to s&box

s&box is a game engine and publishing platform that lets you create, share, and monetize games using C# and a powerful scene-based editor.

s&box gives you everything you need to build multiplayer games and publish them to players — from a full-featured editor and C# scripting to built-in networking, UI, and platform services like leaderboards and monetization.

First Steps

Install s&box and get your first project running in minutes.

Scene System

Learn how Scenes, GameObjects, and Components form the foundation of every s&box game.

Networking

Add multiplayer to your game with lobbies, synced objects, and RPCs.

Publishing

Export your game and publish it to players through the s&box platform.

What you can build

s&box is designed for game developers who want to ship fast. It handles the hard parts — rendering, physics, networking, and platform services — so you can focus on your game logic.

Multiplayer Games

Built-in lobby system, networked GameObjects, and RPCs make multiplayer straightforward.

Custom Tools

Extend the editor with custom panels, widgets, and editor apps written in C#.

Monetization

Sell cosmetic items through the workshop or earn a share of the playfund from your game.

How it works

1. Get access

   Head to sbox.game/give-me-that, sign in, and add s&box to your Steam account.

2. Install the editor

   Install both the s&box game and editor through Steam. Launch the editor to start building.

3. Create a project

   Open the editor, choose New Game Project, pick a template, and start placing GameObjects and writing C# components.

4. Publish your game

   Publish your game to sbox.game or export it as a standalone executable for other storefronts.

s&box is currently in developer preview. Join the forums or Discord if you have questions.