The 1.4 version of aGora (PPC) for Mac is available as a free download on our website. The program is categorized as Games.
From the developer:
aGora is a real-time role playing game where you're in control of a single character called "runner". The camera view can pivot around your character allowing you to see all perspectives of you game. One of the more unique features of aGORA has to be the circular nature of the map, hence the name globes. The circular shape not only makes for interesting game play, but also makes the strategic decisions that much more important.
You may want to check out more software for Mac, such as AgoraVideoCall, which might be similar to aGora (PPC).