There are slides and you click to stack the slides and try to stack them perfectly. Bright colors. Gameplay: * A block slides back and forth above the tower — tap to drop it. * Whatever hangs over the edge is sliced off and tumbles away. Whatever remains is all the next block has to land on. * Miss the tower entirely and the run is over. * Frame perfect: land within one frame of travel of dead centre and the block keeps its full size, and the placement scores double. * The slide speed ramps up as the tower grows, and consecutive frame perfects raise the chime pitch. Stack Tower 3D is free and open-source software, licensed under the GNU General Public License v3.0. Built with libGDX.