A free program for Android, by LazyLand SA.

Mahjong Duels is a free and easy-to-play classic Chinese game of skill and strategy! As you play, you’ll unlock a wide variety of power-ups that can help you win battles. You’ll also be able to challenge your friends in multiplayer games.

Connect to a free game, choose a mode, and you’ll be able to join a multiplayer game. The multiplayer mode allows you to challenge your friends in a match. Online multiplayer is where it gets interesting! You can challenge anyone around the world, or play with your friends. You can play on Android or iOS devices.