Roblox physics

Choose deliberately between simulation, character control, hit detection, and visual-only motion; they are different jobs. Targets Roblox's rolling platform APIs. Pair with physics-tuning for engine-neutral stability and feel.

When to use

• Use for BasePart assemblies, constraints, collision/query policy, ray/overlap queries, forces, impulses, moving physical objects, network ownership, or physics cleanup.
• Use when Touched is unreliable/security-sensitive, parts tunnel or jitter, a mechanism breaks when anchored, or old BodyMover patterns appear.

When not to use: ordinary Humanoid lifecycle/control belongs to roblox-characters; remote validation belongs to roblox-networking; decorative UI/world motion may only need a tween.

Decide the system first