Access a virtual battlefield where the goal is to dominate and protect the area. Place multiple defense towers in tactically advantageous positions and develop a strategy of preventing the enemy units from breaching the perimeter. Improve the defenses in time.
Download of Defense Grid 1.0.5 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software belongs to Games. This Mac app is an intellectual property of Virtual Programming Ltd. 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:
Defense Grid: The Awakening is the definitive Tower Defense Strategy game that’s easy to pick up, engrossing to play, and hard to set down. Strategically place your towers on the map to prevent alien enemies from stealing your power cores. Play just for fifteen minutes or several hours!
You may want to check out more software for Mac, such as Access Grid, Defense zone or Radiant Defense, which might be similar to Defense Grid.