From the Reai Standalone Mahjong series - Singapore Mahjong.

* Beginner to ultra STRONG AI.
* Traditional mahjong OR mahjong with Con-Cards.
* Con-Cards further tests your ability to adapt in-game.
* Comprehensive, detailed, localized rule - edit at will.
* Standalone mahjong.
* Friends can join your table through Wifi.
* Mahjong AI is human-like, rarely makes irrational moves, never cheats.
* Proprietary AI assisted play.
* Mandarin, simplified, traditional and English support.
* Free to play.