십이지천M 오리진 is a free MMORPG game designed for Android devices. It is a port of the PC version and offers similar gameplay and features. The game is set in a world of martial arts and immortals where players can choose from a variety of characters with unique skills and abilities. The game emphasizes the importance of justice, etiquette, and solidarity, and players can choose to join one of the many factions to fight for their cause.

The game offers fast-paced combat with excellent graphics and sound effects. Players can engage in battles with other players or NPCs, and the game offers a wide range of weapons and equipment to choose from. The game also features an in-game economy where players can trade items and materials with other players. The game is free to download and play, with in-app purchases available for players who want to enhance their gaming experience.