Real terrains in seconds, with eroded mountains, rivers that find their valleys and real skies, inside Blender.

TerrainLab builds terrains from landform layers and erodes them with water and wind in seconds, with no timeline to play and no bake folders.

Add a sea, lakes that fill their basins and a whole river network that settles into the valleys the erosion carved, or let it rain and see where the water goes. The ground paints itself, from rock on the cliffs to snow on the peaks, and one click writes everything Unreal, Unity or Godot needs.

Every terrain stays a stack of Geometry Nodes modifiers, so it renders in Cycles and EEVEE, on render farms and on machines without the add-on.

Open the preset browser and click a thumbnail. You get a finished terrain with its layers, erosion and material, and every part of it stays editable.

Press Simulate Erosion. Drainage carves the valleys from coarse to fine, droplets leave sediment fans and thermal passes add scree, with no timeline to play.

The result is stored in the .blend file, so it is still there when you reopen the scene.

Rivers from Erosion follows the drainage the erosion left behind. Main rivers and tributaries settle on the valley floors, bend around the terrain and grow wider downstream, with gravel shores and lakes in the basins they pass.

Pick one of four CC0 skies and a sharp sun comes with it, matched to that sky. Turn the sky to place the sun and add haze for depth.

Nine themes repaint the same terrain, from alpine rock to red desert. The material reads slope, height and the simulated water, so rock, scree, gravel, grass and snow land where they belong.