Here's a great game that's recently been updated, it's called Glest and it's a wonderful 3D RTS game - that's totally FREE!
There, I knew the word 'free' would get your attention!
Play against your fellow Mac gamers online or in a single player that is similar to Myth or Dungeon Siege.
You can take full control of either two factions; tech which are mainly warriors and mechanical devices or magic which are mages able to summon up other creatures.
The graphics are lovely and Glest plays quite similar to many other RTS favorites, like the Warcraft series for example. However, it's quite sad that I am really bad at this game - lol - but I still loved it! For more info, click here for the Glest homepage.
For the Macintosh download - click here!
For information on other excellent games that are also free, please visit my website AppleCrypt Mods :-)