Something quickly whipped up over a weekend. Nothing fancy, just a rip-off of a well-known strategic board game, but with 30 instead of 40 pieces per team to have a bit shorter play time per game. (And a number of other changes that will make this enough of a distinct game so I won't risk take-down notices, I hope.)
Created with xxm. I first had a version based on a WebSocket, but Firefox is no longer allowing this without secure connection, so I switched to long polling and the fetch API.
Enjoy.