Blender, Lumion, TouchDesigner, Sketchfab, Autodesk Maya, Autodesk 3ds Max, Cinema 4D, iClone, Zmodeler, 3D Model Maker, Enscape3D, Polydust, DX Studio, AC3D, picoCAD, OpenFX, 3DTin, Twinmotion, LightWave, Hexagon, EmberGen, RenderJuice, Swift 3D, MeshMagic 3D Modeling Software, Animation Master, XYZmaker, Clara.io, 3DSimED, K-3D, Bforartists, messiahStudio, GroBoto, DeleD CE, Akeytsu, PhotoAnim, Realsoft 3D, VoidWorld, NAIAD, MachStudio Pro are some alternatives to Houdini.