As you play with developing in s&box, you will notice some things are weird, missing, or suck. We are aware.

Here's the current status of key features and missing functionality you'll run into.

Name Description
Audio 🟒 Can play sounds, music, voice chat, can play them positionally or 2D.🟒 Audio processing, effects system🟒 Lip sync<br>🟠 No auto voice ducking.
Multiplayer 🟒 Can create server, join server, sync vars, gameobjects, rpcs🟠 Dedicated server support, no Linux <br>🟠 No error handling, permissions
UI 🟒 Razor and Panel class UI, full style sheets, transitions, transforms, animation, world panels<br>🟠 Some intellisense difficulties with .razor files
Scenes 🟒 Can create scene, gameobject, components, play, stop
Controller 🟒 Controller input<br>🟠 UI navigation with virtual cursor, missing element navigation, on-screen keyboard
Navigation 🟒 Recast navmesh, agents, pathfinding, links
Platforms 🟒 Windows<br>🟠 Is likely to expand in the future, just not a priority
Hammer/Maps 🟒 Create + Load maps, brushwork, props, lights, select + launch map in game🟒 Can use GameObjects
VR 🟒 Easy to develop for, built-in components<br>🟠 Accessibility, user experience needs work, needs more testing
Particles 🟒 Create particle effects, emitters, sprite rendering, model rendering, trails, lights, velocity, collision🟒 Totally moddable and extendable<br>🟠 No built in line renderer, motion vectors, normals
Standalone 🟠 Working on export to standalone version license. Exporter works.
Physics 🟒 Full 3D and 2D physics, great performance + stability
Editor 🟒 Scene editor, editor tools, inspector, editor apps, key re-binding
2D 🟒 2D physics, ortho camera<br>🟠 Basic sprite support<br>πŸ”΄ No 2d editor mode
GameResources 🟒 Custom game resource types, with inspector editing<br>🟠 No binary writing support yet
Terrain 🟠 Early development, basic editing<br>πŸ”΄ No grass/detail models yet
Animation 🟒 Valve's animgraph system, events, IK, animated ragdolls, morphs<br>🟠 Some advanced features currently rely on an undocumented format
PostProcessing 🟒 Shader support, camera-based post-process base component





Created 19 Jan 2024
Updated 15 Jun 2025