TrigammonX™
Digital Backgammon for Three | Play Online
The digital version of Trigammon, designed for computers, tablets and mobile devices.
FREE Pro access during Beta
No app. No Login. No ads. No downloads. Just play!
Digital Backgammon for Three | Play Online
The digital version of Trigammon, designed for computers, tablets and mobile devices.
The digital evolution of Trigammon™
TrigammonX™ is a three-player backgammon strategy game, bringing the original Trigammon™ tabletop game to computers, tablets and mobile devices. Originally created by William “Bill” Bailey and Dennis Angelica in 1979, Trigammon was designed so three people could enjoy backgammon-style play together on one purpose-built board. TrigammonX takes that concept online, preserving the racing, blocking, hitting and bearing off of backgammon while adding the challenge of two opponents sharing the board.
Play with: 3 Human players • 2 Humans + 1 AI • 1 Human + 2 AI opponents
Backgammon — with a third player
Traditional backgammon has 24 points and two players. TrigammonX expands the concept to 36 points and three players, with each player starting from an equivalent position around the board. Each player races 15 checkers toward home. The first to bear off all 15 wins. But adding a third player changes the strategy dramatically. Every move must consider two opponents. A move that protects you from one player may expose you to the other. Racing, blocking, hitting, timing and risk all take on a new dimension.
Play TrigammonX™
You don’t need three people together to play. Play against two computer opponents, play with a friend and one computer opponent, or bring together three human players. TrigammonX handles the dice, legal moves, checker movement, hitting, Bar entry, bearing off and turn order — leaving you to concentrate on the game.
Still evolving
TrigammonX remains under active development. Features, presentation and game-analysis tools will continue to evolve through player testing and feedback. Learn more about our upcoming subscription plans – click here.
Last updated: September 2026