I found the tutorials in the main menu when first launching the game. In the end, I decided not to watch them... they look too elementary for the level of understanding I've reached. But thanks for your help! It's great to know I can come here and get questions answered.
AnakiMana
The easiest way to tell if the planet is habitable is to left-click once on your desired planet. Look at the bottom area of your screen for info on the planet. Also, if you left-click on a sun, it will give you a summary of how many habitable planets orbit it. Hope this helps.
How can I watch the tutorial videos? From Stardock Central I double-click on the Tutorials folder and it launches a splash screen. All I see is "play the game", "manual", "update game", "update serial", and "switch chapter". What am I doing wrong?
When I purchased it, I got an e-mail titled "Thank You for Shopping with Stardock". Inside was a download link for Stardock Central that automatically put my serial numbers in. If you didn't use this link from your e-mail, I would uninstall Stardock Central, and re-download using that link.
I just bought & downloaded the full GCII saga after playing the demo for a few days. I've looked around the game but can't find any in-game help or keyboard shortcut maps. Are there any? Alt-tabbing to look at wikis and browse forums tends to ruin my "in-the-zone"edness, if you know what I mean...