Download of TrackBox 1.0 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. The program lies within Games, more precisely Arcade. This free Mac app is a product of Jiri Tichy. We recommend checking the downloaded files with any free antivirus.
From the developer:
TrackBox is a nontraditional shell game (also known as Thimblerig, Three shells and a pea, the old army game) for your Mac. Select a parcel where to hide the pellet, follow the parcel while shuffling and touch the correct box. If you are incorrect you loose one life represented by a brown robot leaving the scene.
You may want to check out more Mac applications, such as Qwak, Gaichu or Plantas VS Zombis, which might be similar to TrackBox.