Ultima Reversi is a popular puzzle game developed by Ultima Architect Inc. with over 3.8 million downloads on the Android platform. The game is based on the classic board game Reversi and offers a challenging gaming experience for players of all ages. The rules of the game are simple, but mastering it requires strategic thinking and planning.

The game offers various modes of play, including 1-player mode (Human vs CPU), 2-players mode (Human vs Human), and Watching mode (CPU vs CPU). Players can choose from 10 levels of difficulty and various board sizes (4x4, 5x5, 6x6, 7x7, 8x8) and colors. The game also features a scoreboard and rating system, undo and hint function, and support for recording game notation. Ultima Reversi is optimized for tablet size devices, allowing players to enjoy the game with family and friends.

Overall, Ultima Reversi is a great choice for puzzle game lovers who enjoy a challenging and strategic gaming experience. With its various game modes, difficulty levels, and customization options, Ultima Reversi offers endless hours of entertainment and fun.