Low Poly Art - World's largest free collection of low polygon backgrounds
MagicaVoxel - A free lightweight GPU-based voxel art editor and interactive path tracing renderer.
Trixel - Instagram for triangular pixel art
Goxel - Goxel is a simple, but powerful voxel graphic editor with 24-bit color support, unlimited scene...
PictureThat - Fill your walls with art and photos in AR 🎨
Cubik Studio - Model in a unique cubic style. Start modelization with boxes. Move, rotate and scale cuboids.