Picogen Alternatives

Terragen is a scenery generator, created with the goal of generating photorealistic landscape...

Command powerful tools like erosion and advanced colormaps to create terrain heightmaps, meshes, and textures for your game or 3D scene. Download for Free!

Create vast expanses of terrains, add trees, select the best point of view and render...

EarthSculptor is a realtime terrain height-map editor and paint program featuring an easy to use...

Hexagon - Box Version

Generate high resolution heightmaps for terrain generation.

World Creator is a real-time terrain and landscape generator and creation tool, which is industry proven by many game, movie and artwork companies.

Plugin for 3ds Max that creates skies, clouds, ocean waves, boat wakes, naval dynamics and terrain.

PnP TerrainCreator is a highly integrated tool for large scale terrain creation.

Geomorph is a height field generator and editor for the Linux operating system.

Large 3D terrain generator

Nem's Half-Life and Half-Life 2 editing tools.

Voxelogic develops voxel-based modeling tools for terrains as well as 3D objects.