3D MahJongg features solitaire gameplay using mahjongg tiles in which pairs of tiles must be matched up and removed from the board. Two variations are included: classic rules and "Rivers" rules. In addition to traditional mahjongg tiles, other themes are available such as farm animals, zombies, and sea creatures. Playing through the 200 different levels of Adventure Mode unlocks new tile layouts, backgrounds, and themes. A level editor is also available to create custom levels.