Moved to PA Alpha forum. Also see viewforum.php?f=73 for Mac specific information, but read the rules for that sub-forum before posting.
For Steam? 1. Go to https://store.uberent.com/Account/MyKeys 2. Convert your Uber key to a Steam key (warning, you can't go back, but there are no downsides to this(other than Steam DRM), you are just changing how you log in the game) 3. Download, install, open Steam, log in your account 4. Go to "+ADD A GAME" in the lower left corner, and click on "Activate a Product on Steam..." 5. Accept the License, enter your Planetary Annihilation Steam key and press OK. 6. Proceed to install the game. 7. Welcome to PA! Source: I play on a Mac, I just did this.
