Yes. This version is free to play in your browser, with no account, subscription, or in-game purchases.

You can add 21–0 to your home screen using your browser's install or Add to Home Screen option, where supported. An internet connection is required to load the game, simulate matches, and resume saved progress. After an online visit, the offline screen helps you reconnect; it does not run matches offline.

Play men's singles, women's singles, men's doubles, women's doubles, or mixed doubles. Team modes include the Thomas Cup, Uber Cup, and Sudirman Cup. Individual modes offer a single knockout tournament or a World Tour season.

A card represents a player or pair in a particular season. The pool spans 1990–2026, so two cards for the same player can have different ratings. The game lets players from different eras meet in a simulated draw.

Play without an account. In Career, choose Continue saved career on the same browser or app to return to your player. In Simulation, choose Continue saved game on the same browser. Simulation saves expire after 30 inactive days. Clearing browser storage removes access to your saved progress.