Reversi Trio — 3-Player Reversi, Spectator Mode & Mirror AI
Reversi Trio is a board game app that adds 3-player battles, Spectator Mode, and a learning AI called Mirror to classic Reversi.
This is not just Reversi anymore.
Reversi Trio expands the classic strategy board game with 3-player mode, AI-vs-AI Spectator Mode, and Mirror, a special AI that learns from your play style. You can still enjoy classic 2-player local battles, but the app now gives you very different ways to explore the game.
3-Player Mode
Three players, three colors, one board. Alliances shift, strategies collide, and the classic rules take on an entirely new dimension. It’s not just about flipping tiles — it’s about reading two opponents at once.
If you want the theory behind that feeling, the companion article Why 3-Player Games Feel Completely Different From 2-Player Games goes a bit deeper.
For the broader background of the game itself, read A Short History of Reversi.
Spectator Mode
Watch AI opponents play each other in Spectator Mode. It works with both 2-player and 3-player setups, so you can compare personalities, strengths, and habits without touching the board.
Mirror — The AI That Learns You
Beat Hard three times to unlock Mirror, a special AI that studies your moves and adapts to your play style over time. It is not just a stronger opponent — it feels like facing your own habits.
2-Player Mode
The classic two-player experience is fully supported. Play against AI, challenge a friend locally, or switch into Spectator Mode for an AI-only match.
Characters & AI Difficulty
Five AI difficulty levels, each with its own character icon.
| Difficulty | Character | Unlock Condition |
|---|---|---|
| Easy | Dog | Available from start |
| Normal | Monkey | Win 3 vs Easy |
| Hard | Demon | Win 3 vs Normal |
| Expert | King | Win 3 vs Hard |
| Master | Dragon | Win 3 vs Expert |
Color Themes
Three tricolor themes inspired by France, Italy, and Germany. Unlock new themes as you rack up victories.
Key Features
- 3-player mode (mix Human and AI freely)
- 2-player mode
- Spectator mode (AI vs AI)
- 5 AI difficulty levels (Dog, Monkey, Demon, King, Dragon)
- Mirror AI — learns from your games (unlocked after 3 wins vs Hard)
- Tricolor theme selection (3 themes)
- Statistics, win records, and streak tracking
- Japanese & English support
Download
Contact
Bug reports and feature requests are welcome.