Mandagon 1.0 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. This free Mac application is a product of Blind Sky Studios. The software lies within Games, more precisely Arcade.
From the developer:
This game lets you explore Mandagon, a world inspired by Tibetan theology and philosophy. With a focus on life and death, you will discover what it means to make a true sacrifice. You will traverse a vivid interpretation of Bardo, the Tibetan word for limbo. You need to learn what experiences brought you there and what forces pull you through.
You may want to check out more software for Mac, such as TuxRacer, Balls Trial or Varmintz, which might be related to Mandagon.