MagicaVoxel - A free lightweight GPU-based voxel art editor and interactive path tracing renderer.
Terragen - Terragen is a scenery generator, created with the goal of generating photorealistic landscape...
Cubik Studio - Model in a unique cubic style. Start modelization with boxes. Move, rotate and scale cuboids.
World Machine - Command powerful tools like erosion and advanced colormaps to create terrain heightmaps, meshes, and textures for your game or 3D scene. Download for Free!
Voxel Builder - Design and edit 3D voxel models in your browser.
SpriteStack - 3D pixelart editor based on sprite stacking technique.