It has over 20 fully customizable rule presets, including Chinese Classical, Old Style (Hong Kong), New Style and Chinese Official, Japanese Classical and Modern, American Classical and Modern, Australian, and several European versions. It also supports 16-tile Taiwanese Mah Jong and 11- or 12-tile Mah Jong with virtual jokers. The download includes a comprehensive help file explaining in detail all rule options, and a Flash tutorial is available as a separate download. Multi-player games are supported via DirectX and can be player over the Internet or LAN.
The registered version comes with 12 alternative themes and several alternative tile sets, and supports user-defined themes and custom tile sets.