There are bugs in the current version of Pillars of Garendall that require workarounds under OS X 10.3, and make it unplayable under OS X 10.4 or later. Unfortunately the original developer of Pillars of Garendall has not updated the game. Had we known that we would have to update Pillars of Garendall in-house, we would not have signed the project.
All that said, we would like to release an update to Coldstone, the utility that created Pillars so we can then update Pillars. The update has been worked on here, but not as consistently as we would like. We have new staff here at Ambrosia, and as soon as we complete prior commitments, we'll be able to assign someone to the update.