VoxelY – Voxel Terrain, Water & Climate Sandbox

Publisher

u3d

Please Note

This entry is from Wednesday September 16, 2026. The price of the asset may have changed since then.
Please visit our homepage for recent offers and sales. Official and private Unity Asset Store™ sales usually last about 14 days.

Overview

VoxelY is a self-contained procedural sandbox. It generates a voxel island and then lets physics run it: rivers cut their own beds, lakes find their level, lava freezes into obsidian, clouds condense and rain out, fire spreads through a forest and leaves the ground scorched behind it. Everything is CPU-side, Burst compiled, and shipped as readable C# - no DLLs, no compute shaders, no render pipeline lock-in.

WHAT YOU GET

Procedural terrain generator - fractal noise with domain warping, cut into terrain provinces that each pick an archetype (plain, old mountains, young cliffs, basin, plateau, ravine), plus craters, an island mask and a hydraulic erosion pass of 120,000 droplets that carves real drainage networks.

Chunked voxel meshing with colliders - 64x64 chunks rebuilt incrementally, so digging a canal never re-meshes the island.

Two cooperating water solvers - a columnar shallow-water field (virtual pipes) for standing and flowing water, and a Burst particle solver (double-density relaxation) for splashes and rain that hands its volume back to the field.

Lava with a Bingham yield stress - the critical slope depends on flow thickness, so thin tongues freeze while thick ones keep running. Lava cools to obsidian, ignites vegetation and flashes water into steam.

Live climate - a temperature field driven by altitude and latitude feeds gas voxels: vapour rises, matures at the cloud deck, rains out. Wind with optional Coriolis deflection. A one-key time-lapse walks every climate zone and ends in a full ice age.

Fire and scorching - vegetation burns, spreads by wind and proximity, leaves standing snags, and permanently darkens the terrain under it through a burn mask read by the terrain shader.

Eight animated creatures - T-Rex, triceratops, stegosaurus, raptor, brachiosaurus, a lake monster, pterodactyls and crocodiles, built from voxel boxes at runtime with per-species silhouettes, size variation, herd behaviour, nesting and hunting, drawn with GPU instancing.

World-editing tools - dig laser, water pour, meteor and a bridge builder (beam / arch / suspension). Every tool edits the same field the simulation reads, so the consequences are physical rather than scripted.

Cinematic camera - a real lens model: 7 / 14 / 24 / 50 / 105 / 200 / 700 mm, fifteen aperture stops from f/0.1 to f/11, depth of field computed from focal length and subject distance, and a fisheye curved-world mode.

A five-level demo campaign - flood, eruption, tornado, meteor shower and a predator wave, each survivable by reshaping the terrain and each lost if you do nothing. Turn it off with one checkbox for a pure sandbox.

Complete icon-based UI - toolbar with tooltips, settings, climate globe, in-game menus, HUD.

WHAT IT IS NOT

This is a simulation sandbox and a source-code reference, not a drop-in terrain painter for an existing scene. It builds and owns its own world at runtime.

Documentation is included under Assets/VoxelY/Documentation.