Thanks for playing Bringris and feedback!
While the lack of vertical rotations makes the game harder, the frequencies of various pieces have been adjusted to make it possible to play the game for a long time. Some players say that they can play almost indefinitely.
Added a Mac version (although it is quite slow on my old MacBook Air).
Thank you, and bought! There's a bit of weirdness with the packaging of the Mac executable, like an an extra layer of ".app" wrapping about the app. The extracted app wouldn't execute, but right-clicking it and choosing "show package contents" showed the proper app inside. I dragged that outside the inital app, and was able to launch it.
