Voxelモデリングのツールは多いが　ドット出力はSpriteStackぐらいでコンセプトが違うから独占できるかもしれないな
https://store.steampowered.com/app/1757120/SpritePile_20/
https://store.steampowered.com/app/1106180/SpriteStack/?l=japanese
https://store.steampowered.com/app/1696890/Anima_Toon_3D_Voxel_Character_Animation/?l=japanese
https://store.steampowered.com/app/454550/Qubicle_Voxel_Editor/