WorldPanel and ScreenPanel — HUD overlays and 3D world-space UI with Razor PanelComponent
WorldPanel and ScreenPanel — UI in the World s&box UI uses (Razor) attached to either a (HUD overlay) or (3D world-space UI). The same component works with both…
Player Controller - s&box Scene Documentation
Player Controller The Player Controller component provides character movement for games. It handles physics-based movement, ground detection, jumping, and camer…
Common s&box component gotchas — physics, networking, scene, and rendering pitfalls
Common s&box Component Gotchas Practical pitfalls that catch most new s&box developers. Physics Rigidbody + CharacterController on the same GO — don't do it. Th…
Scene setup checklist — minimum viable scene with lighting, post-processing, and physics
Scene Setup Checklist for New Projects A quick reference for the components every new s&box scene typically needs. Minimum Viable Scene Lighting Post-Processing…
SkinnedModelRenderer: Animation Events (Footstep, Sound, Generic, AnimTag) and Sequence Playback
SkinnedModelRenderer Animation Events and Sequence Playback Animation Events exposes callbacks for animation events defined in the model's animation graph or se…
Sandbox: NPC system — Schedule, Task, and Layer architecture
NPC System — Schedule, Task, and Layer Architecture The Sandbox NPC system uses a layered architecture: Layers handle continuous behaviours (navigation, senses,…
Particle Effect - s&box Documentation
Official s&box documentation for Particle Effects - visual effects system. Particle Effect creates visual effects using GPU-accelerated particles. The system su…
Explore the Engine - s&box Documentation
Explore the Engine Learn how s&box works by exploring the testbed and understanding the core concepts. Play Testbed Start s&box (not the editor) and find the ga…
s&box ThrusterDefinition: Thruster type GameResource
ThrusterDefinition GameResource API Reference ThrusterDefinition is a GameResource that defines a thruster type with a prefab, used by the Thruster tool to spaw…
Sandbox: Hydraulic tool — motorized SliderJoint with LineRenderer shaft
Sandbox Hydraulic Tool — Motorized SliderJoint Constraints The Hydraulic tool creates a between two objects with a component that can extend and retract the joi…
s&box ScriptedEmitter: Particle emitter GameResource
ScriptedEmitter GameResource API Reference ScriptedEmitter is a GameResource that defines a particle/VFX emitter with a prefab, used for spawning visual effects…
Custom editor tools — EditorTool, Gizmo drawing, scene tracing, and overlay UI
Custom Editor Tools Editor tools appear in the s&box toolbar and let you build scene editing workflows — painting, placement, custom gizmos. They must live in a…
s&box WheelDefinition: Wheel type GameResource
WheelDefinition GameResource API Reference WheelDefinition is a GameResource that defines a wheel type with a prefab, used by the Wheel tool to spawn wheels. Ty…
VirtualGrid
VirtualGrid Efficient virtualized grid component for large lists in UI. When to Use Use when displaying: Large item lists (100s-1000s) Inventories with many slo…
Animation - s&box Documentation
Animation s&box supports skeletal animation for characters and objects. Animate models using imported animations, blend between states, and control playback fro…
VerletRope — rope physics with attachment, slack, and stiffness
VerletRope simulates rope physics using Verlet integration. The rope hangs from the GameObject's position and optionally attaches its end to another GameObject.…
GameObject - s&box Documentation
GameObject A GameObject is the fundamental building block of scenes in s&box. GameObjects have a transform (position, rotation, scale), can have parents and chi…
Component execution order — OnAwake, OnStart, OnUpdate, OnFixedUpdate, and OnLateUpdate
Component Execution Order s&box calls component lifecycle methods in a defined order each frame. Understanding this order is essential for avoiding race conditi…
GameObjectSystem - s&box Scene Documentation
GameObjectSystem GameObjectSystems are global systems that operate on groups of GameObjects. Unlike Components which are attached to single GameObjects, systems…
s&box HoverballDefinition: Hoverball type GameResource
HoverballDefinition GameResource API Reference HoverballDefinition is a GameResource that defines a hoverball type with a prefab, used by the Hoverball tool to …