Powered by the Palamedes research project

Master the
ancient game

Play and analyze backgammon and its variants using award-winning, superhuman AI

Looking for the Android version? Visit the dedicated page →

Polygammon backgammon board

Everything you need to level up

Polygammon provides poly-dimensional control, allowing you to seamlessly configure game variants, engines, and algorithms in one superhuman suite.

Rich Game Variants

Backgammon, Tavli (Portes, Plakoto, Fevga), Narde, Nackgammon, Hypergammon, Takhteh — and more variants in the works.

Superhuman AI

Evaluation engine based on neural networks, trained on millions of self-play games using advanced reinforcement learning.

Analyze and Improve

Review your games move by move and pinpoint mistakes. The engine provides equity-based feedback to sharpen your play.

Explore AI Mechanics

Investigate AI behavior by independently selecting search and evaluation algorithms to see exactly how they impact game strategy.

Award-winning

Battle-tested against elite AI competition and twice a gold medalist at the Computer Backgammon Olympiad, organized by the ICGA.

100% Free

No paywalls, no ads, no catch. Polygammon is free to download and use. Passion-driven software made to share.

Awards

Ready to play?

Download free today — no sign-up required.

Download for Windows