ChessTier

ChessTier is a real-time multiplayer chess game with a fully 3D board, playable in the browser or as a native desktop client. Beyond classic rules, matches can run custom rulesets — including Flo, a faster variant for 2–4 players — edited live through an in-app GM rules editor.

ChessTier signs in through the same IncrediPortal identity as this site, so if you're logged in here, you're already set up to play.