Paint 3D, Blender, Microsoft 3D Builder, Cinema 4D, meshmixer, Nomad Sculpt, Face Gen, Sculptris, Zmodeler, Topogun, Autodesk Mudbox, Sunny 3D, 3D-Coat, ShapeWorks, Paint3D, Sculpt+, MagicaCSG, Deep Paint 3D, Sculptura, picoCAD, BodyPaint 3D, TrueSculpt, Sensei Format, Archipelis 3D, Dilay, Zero Brush, CrackArt, PlastiSketch, Tattoo, Dead Deer, Pointshop3D, Putty3D, Future Paint 3d, EasyToy, Armory 3D, ShapeShop, Artist3D, SculptGL, Sculptfab, 123D Sculpt, Corona Renderer, Adobe Dimension, Bforartists, iDough, GroBoto, Polybrush, KenShape, Rocket 3F, Curvy 3D, MeshMolder, Instant Meshes, Meta 3D Modeller, Blacksmith3D-Paint, Quidam, LipService w/LBrush for Maya, PloppSL, Sharp Construct, CB Model Pro, 3Shaper, Blacksmith3D-Morph are some alternatives to ZBrush.