Download of Quanoid 1.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program lies within Games, more precisely Puzzle. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. This free software for Mac OS X is a product of Mountain Rose Multi Media.
From the developer:
Quanoid is an addictive classic arcade game with a twist. Once you start playing it, you will not be able to stop. The tool provides multiple lives, so that you can improve your playing skills and complete the levels you are offered. In addition, you can see your score in real time.
You may want to check out more software for Mac, such as Steve the Sheriff, The Race or Zulu's Zoo, which might be similar to Quanoid.