The 1.0 version of Blockwars 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. This Mac application is a product of Stinware. 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. The application lies within Business Tools, more precisely General.
From the developer:
BlockWars is an exciting new arcade game where you'll need quick thinking and even quicker reactions to win! There are two ways to play. The first is a fun two player game. Break your blocks as fast as you can and send them to the other player. Or try the difficult challenge mode where you'll need to control two sets of blocks.
You may want to check out more Mac applications, such as Dynadot Account Management Client, which might be similar to Blockwars.