TerraForge3D is described as 'Free And Opensource Procedural Terrain And Modelling Tool. This is a free alternative to paid software's like Gaea or World Machine. This has everything you need to make any of terrain you want to. This is very easy to learn and use' and is a 3D Modeler in the development category. There are more than 25 alternatives to TerraForge3D for a variety of platforms, including Windows, Mac, Linux, Autodesk 3ds Max and Unity apps. The best TerraForge3D alternative is Vue, which is free. Other great apps like TerraForge3D are Infinigen, Terragen, World Machine and World Creator.