Find nearby 3D objects in constant time O(1).

Spatial hashing for Unity using ECS/DOTS

An opinionated 2D sparse grid made for use with Bevy. For storing and querying entities

A simple and fast C# spatial hash implementation

Spatial hashing for broadphase collision detection

An implementation of spatial hashing for 2D collisions for the PICO-8.

Simple JS physics simulation with colliding primitives, that uses a spatial hash for efficiency

2D Spatial Hash Grid that extends Map

Quadtree implementation (updated for java 8, properly uses generics)

2D Spatial Hash Grid

Efficient, thread-safe 2D spatial hashing for Go

A browser-based ecosystem simulator where every keystroke spawns a procedurally generated organism. Type characters to create creatures with unique DNA, watch them hunt, flock, reproduce, and survive. Punctuation triggers dramatic world events — earthquakes, rain, gravity wells, slow-motion.

🚀 High-performance, generic Spatial Hash for Unity. Architected for O(1) performance, zero allocations, and data-oriented simplicity. Includes multi-part masterclass tutorial.