🚧 Work in progress – Our first stable release is soon.
We're building something special for the chess community – and it will always be free.
OpenChess3D is a free, open‑source chess game that brings together beautiful 3D graphics, powerful AI analysis, and full PGN support.
No ads. No paywalls. No subscriptions. Just chess, the way it should be.
- Forever free – You will never be asked to pay for features or content.
- Open source – Anyone can inspect, modify, and redistribute the code under the GPLv3 license.
- Community driven – Your feedback and contributions shape the future of OpenChess3D.
- Respect for creators – We give full credit to the authors of the Lozza engine and all other dependencies.
- 🏆 Play vs Strong AI – Challenge Lozza, a powerful open‑source UCI engine.
- 📜 PGN Import / Export – Analyze your games or share them with friends.
- 🎮 Immersive 3D Board – Rotate, zoom, and enjoy realistic pieces with dynamic lighting.
- 🎚️ Adjustable Difficulty – From beginner to grandmaster, the AI adapts to your level.
- 🧩 Open & Extensible – Built with modern C++ and a clean architecture.
Once released, you can grab the latest version from the Releases page.
We provide binaries for Windows, macOS, and Linux.
git clone https://github.com/crwg/OpenChess3D.git
cd OpenChess3D
# Follow the build instructions for your platform (see BUILD.md - soon, sry)