Download of Brickworks 1.1 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. Brickworks for Mac lies within Lifestyle Tools, more precisely Entertainment. 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.
From the developer:
Brickworks is a modern streamlined viewer for virtual LEGO models and scenes created using the LDraw™ open standard.
You may want to check out more Mac applications, such as AutoSmiley, SIMBL Agent or Cheshire Life, which might be related to Brickworks.