HTML5 Tetris Game for jQuery Play Blockrain instantly on arcadefork - no download, no sign-up, works on any device.
Originally by Aerolab · undefined licence · source
Yes. Blockrain runs entirely in your browser on arcadefork - no download, no account, no payment.
Blockrain is an open-source project by Aerolab, published under the MIT licence. The original source is linked from the credits page.
It is served as a normal web page, so it scales to your screen. If it needs a keyboard, the on-screen controls are still there.