Physical game

This might be the best option. Finding a 10×10 chessboard is hard, but a 10×10 Checker board works just fine. And the pieces can be bought separately.

We will soon start a Kickstarter campaign to make the physical 10×10 chessboard available to anyone.

Digital game

Building a 10×10 chess engine requires years of programming experience and lots of free time. We are trying our best to make the game available in the digital form.

For now, the only option available is https://fairyground.vercel.app/

The code for each game will be provided soon.