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Zero-GC, SoA volumetric ember engine with localized spawn bounds, O(C) color bucketing, chromatic shimmer, dynamic cooling buoyancy, and decoupled death hooks.

A JavaScript 2D physics engine.

A reciprocal DOM-physics field — elements bend the field; the field's density bends them back.

A JavaScript 2D physics engine.

Extremely lightweight React cursor effects (0 dependencies other than React)

High-performance 2D rigid body physics engine — sequential impulse solver, dynamic BVH broadphase, GJK/EPA, joints, force fields, sleeping

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High-performance 2D physics engine for TypeScript & JavaScript — rigid bodies, constraints, fluid simulation, raycasting, and deterministic multiplayer. Tree-shakeable, zero dependencies.