About the Game
s&box is a game creation platform built on Valve's Source 2 engine - our spiritual successor to Garry's Mod.
Play, create, and share games, explore community creations, and experience endless sandbox fun with powerful modern tools.
Play
Hundreds of games made by the community - shooters, roleplay, racing, platformers, horror, and stuff we don't even have a name for yet. No installing or subscribing, just click to play. Party up with your friends and they can play too, no need to mess around setting up servers.
Create
Anyone can create games using our intuitive modern editor, creating scenes with a standard scene system and a C# API with powerful hotloading.
Share
You can publish your games directly to the platform where everyone can play it at the click of a button.
You can earn through our Play Fund from players playing your games, directly funded from cosmetic purchases.
Or (coming soon...) you can take it one step further and publish to Steam as a standalone title, with no engine royalties.
FEATURES
Source 2 Engine: Built on the same engine as Half-Life: Alyx and Counter-Strike 2.
Multiplayer: Party up with your friends and jump into games straight away, no servers needed.
Game Library: Hundreds of community-made games across every genre, always growing.
One Click Play: No installing or subscribing - browse and jump into any game instantly.
Constantly Updated: Like Garry's Mod and Rust - big content updates on a fast cycle.
Customization: Personalize your player with cosmetics that carry across every game.
Game Editor: Create your own games in our intuitive editor with C# scripting and real-time hotloading.
Play Fund: Creators earn money when people play their games.
Publish to Steam: Coming soon... take your game standalone on Steam, royalty-free.
Screenshots
8 images
Version Information
Steam Patch Notes
Official update history
Stability
- Fixed several rare crashes in rendering, animation, texture streaming and Vulkan.
- Fixed a crash when importing meshes that are too complex.
- Fixed a crash when saving a Shader Graph while the game is playing.
- Crash reports now include more detail about GPU and video memory crashes, and the game's own log.
Graphics
- Screen space reflections are now on by default and controlled by a quality setting.
- Fixed sun shadow blur smearing in one direction at the highest filter quality.
- Fixed striped self-shadowing on spot light shadows.
- Fixed reflections stretching near the edges of reflection probes, and realtime probes reflecting the wrong side.
- Fixed models with negative scale rendering inside out.
- Fixed stencil effects being ignored in the depth prepass.
- Fog can now have a directional colour, and the skybox can use its own fog.
Performance
- Faster lighting and shadow filtering on the GPU.
- Faster UI blur effects, which are now cached between frames.
- Particles use less memory and simulate faster.
- Terrain uses less memory until it's needed, and its collision builds faster.
- Fewer allocations in UI layout, text rendering, traces and tags, for fewer hitches.
Gameplay
- Fixed collisions on dense terrain and tessellated ground, including rolling objects launching off flat seams.
- Fixed heavy objects not resting properly on locked platforms.
- Fixed static objects adding extra rolling resistance.
- Fixed TriggerHurt dealing damage on the wrong timer.
- Fixed physics not working after a scene reload in some cases.
Multiplayer
- Fixed players failing to connect in lobbies when a direct connection can't be made. Traffic now goes through the host instead.
- Fixed stale networked values when components are destroyed.
Menu and settings
- New "Game" volume slider and a streamlined push to talk option.
- Cleaner game and map pages with usage stats, clearer ratings, file sizes and workshop tags.
- Garry's Mod maps now show thumbnails, and the map picker no longer lists skybox maps or cuts off titles.
- Escape now always backs out, even when something else is using the keyboard.
- Smoother startup splash screen.
- Cloud content now checks file contents instead of just file size to decide whether it needs downloading.
Dedicated servers
- Output starts as soon as the server starts, with a clearer message when it's idle.
- The overlay shows the real max player count, and goes offline when the server is idle.
- Up and down arrows browse command history.
- The server's Steam ID (and public IP if enabled) is printed on startup.
Security
- Several security fixes.
For creators
- Faster texture compression, sky prefiltering and sprite sheet compiles.
- Scene saving is about twice as fast in projects with many cloud assets.
- Fixed publishing Hammer decals and Mapping Tools geometry, and editor-only data is no longer included in published games.
- Panel ControlSheets now match the editor inspector.
- Colour properties show as a full-width swatch.
- Dragging multiple GameObjects into the Asset Browser creates a prefab for each.
- The scene browser collapses objects without relevant components.
- Added a grid option to the fast texture tool.
- Views can turn off debug drawing completely.
- UI now supports the :disabled, :enabled, :checked, :root and :focus-within selectors, and An+B in :nth-child.
- Fixed transform-origin and perspective-origin keyword order, panel text and panel sibling ordering.
- Fixed the orthographic camera's screen projection.
- Fixed ModelBuilder textures getting stuck on a placeholder.
- Fixed the external changes dialog never showing for scenes.
- Fixed asset folder renames, the global scale tool on rotated objects, curve handle dragging and the viewport options closing on mouse input.
- Fixed the editor hanging after hotload on macOS.
- Added Input.Keyboard.Capture for capturing key combinations.
- Added Scene.ChangeScene overloads that take a SceneFile or a path.
Stability
- Fixed a GPU crash on characters with facial animation and other morphs.
- Fixed a GPU crash when reflection probes were baked with the Quality filter.
- Fixed crashes involving 3D skyboxes, including when the world they belong to is unloaded.
- Fixed a crash when UI elements were added or removed while the UI was updating.
- Fixed a crash from animations using out-of-range parameters.
- Fixed several rare rendering crashes involving missing textures, complex UI gradients and unloaded materials.
- An error in a game's rendering code is now reported instead of crashing the game.
- Crash reports now include much more detail about GPU and video memory crashes, which will help us track down the ones that are left.
Graphics
- Fixed screen-space shadows turning black where they meet the skybox.
- Fixed depth of field producing stray black or white pixels.
- Fixed object highlight outlines on the back faces of models.
- Fixed world text jittering on moving objects.
- Fixed 3D skyboxes sometimes missing parts of their scenery.
- Fixed visual glitches when views use different anti-aliasing settings.
- Laptops and other integrated GPUs are now detected more reliably, so default quality settings suit them better.
- You'll now get a warning when a game uses more video memory than your GPU has available.
Gameplay
- Gibs from broken props now keep the prop's material and surface type.
- Explosions now check for cover correctly, and their damage is credited to the weapon or prop that caused it.
- Fixed some physics joints ending up misaligned or throwing errors.
- Scraping sounds now only play for physics objects that are moving.
- Fixed sound areas not following the object they're attached to.
Multiplayer
- When joining a server fails, you're now told why instead of it silently giving up.
Loading games
- Game code now comes from a new service that builds it for the exact version of s&box you're running.
Input
- Fixed the mouse cursor not locking back into the game after opening a window or panel.
Linux
- Fixed launching multiplayer and creating or joining lobbies from the editor.
- IDs generated on Linux now match Windows, fixing mismatches when Linux and Windows players share content.
- Fixed problems with file paths that differ only in upper and lower case.
Other
- Updated the Steam client libraries.
- Standalone games no longer change your s&box install location setting.
For creators
- Games must now compile on our servers before they can be published, and you'll see the compiler errors if they don't.
- Fixed tinting on aggregate meshes in Hammer.
- Fixed a Hammer crash when a viewport started rendering while another render was still in progress.
- Fixed crashes when loading some maps and when merging very large meshes.
- Fixed shader compiler crashes on unterminated sections, errors at the end of a file and long error messages.
- Projects with more than 65,535 linked files now work.
- Fixed SVG textures breaking when they're hot-reloaded.
Fixed a collection of issues with new Platform Chat, most importantly clients not receiving messages
Fixed game video settings being stomped in the editor
Fixed certain objects becoming wrongly transparent after opaque fade fixes
Fixed a stutter on dedicated servers when new clients joined
Fixed maps with a target game not launching at all for other games
Discover in it's own menu tab, Games has no dropdown, Hub removed
Game browsing uses new ratings and tags
Fixed a VRAM leak with the new UI batching causing out of memory crashes
There was a crash when using new NVIDIA GeForce 595.71+ drivers, we have released a hotfix for this.
Current Release
Build 25964806
Uploaded Oct 18, 2026
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System Requirements
How to Install
sbox.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
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Download s&box for PC with a direct link or via torrent. Get the full version of s&box for free. s&box is a Action released by Facepunch Studios.