Terragen - Terragen is a scenery generator, created with the goal of generating photorealistic landscape...
MagicaVoxel - A free lightweight GPU-based voxel art editor and interactive path tracing renderer.
Vue - Create vast expanses of terrains, add trees, select the best point of view and render...
Cubik Studio - Model in a unique cubic style. Start modelization with boxes. Move, rotate and scale cuboids.
DreamScape - Plugin for 3ds Max that creates skies, clouds, ocean waves, boat wakes, naval dynamics and terrain.
SpriteStack - 3D pixelart editor based on sprite stacking technique.