The 1.0 version of Particubes for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. Particubes for Mac lies within Games, more precisely Action. The actual developer of this free Mac application is Voxowl Inc. We recommend checking the downloaded files with any free antivirus.
From the developer:
Particubes is the perfect opportunity to play around with cubes to build worlds of your own and mini-games. You can create and edit your own world made out of cubes. You can create individual items that you can freely edit and share with others. You can share your mini-game so everybody can have fun with it.
You may want to check out more software for Mac, such as Hospital Hustle, TastyPlanet or AirAssault2Demo, which might be similar to Particubes.