Gaea vs World Machine

Gaea is a Windows terrain design application for VFX, games, and virtual production. It builds terrain from procedural forms, imported data, or hand-drawn elements, then applies simulations for erosion, debris, glaciers, rivers, snow, and vegetation. It can produce terrain-aware color, textures, masks, material zones, vegetation data, and flow maps. Exports include heightfields, meshes, point clouds, textures, masks, and other terrain data. Bridges connect Gaea with Unreal Engine and Houdini; the Gaea2Houdini plugin requires a Professional or Enterprise license. Gaea also offers node-based compositing and a hybrid render engine.

The Community Edition is free for non-commercial use. The listed perpetual-license prices are $99 a month for Indie, $199 a month for Professional, and $299 a month for Enterprise; each is described as a one-time price. Gaea requires Windows, an AVX2-capable CPU, and at least 16 GB of RAM. CPU-only operation is supported; GPU compute needs CUDA 12.5 or higher or HIP 6.0 or higher.

World Machine is procedural 3D terrain-generation software for artists creating realistic or stylized landscapes, including game, film, and visualization work. Its node graph offers more than 100 devices for terrain, erosion, rivers, masks, materials, and outputs. Simulations cover flow-based and thermal erosion, snow accumulation, river channels, lakes, and coastal erosion; Dragontail Peak adds terrain with overhangs, cliff faces, and caves. Exports include heightfields, meshes, masks, and PBR textures in standard formats, with listed file types including RAW, EXR, TIFF, PNG, TER, OBJ, glTF, and GLB. Compatible tools named by the maker include Unreal Engine, Unity, Godot, Blender, Maya, and Cinema 4D. Professional and higher editions support tiled builds for worlds larger than memory and can resume builds after interruption. The free Basic edition has the Indie toolset but caps each output asset at 1025×1025 pixels and is limited to non-commercial use. Paid plans are Indie at $119 a month, Professional at $299 a month, and Studio Site at $1,999 a month. It runs on Linux, macOS, and Windows.