I've been playing Godfinger for a month. Am currently at lever 37. Here are a few things I've learned:
1. If you get stuck email the support, they DO reply quickly.
2. In order to add more buildings you need to Super Terraform. You have to wait a while for the planet to enlarge. When it does you have to move buildings closer together to create open space.
3. To move buildings hold your finger at the base of the building near the ground and let it charge up. Turn the world until you find a slot.
4. The runes are usually BAD. Before opening, move all your followers away and keep the thunder cloud close by.
5. Friends are the best way to get gold and XP. Go to their planets frequently and enchant them. Keep track of the ones that enchant you back and drop the ones that don't respond to your enchant requests or that don't enchant you.
6. A good way to get friends is go the the app store and find the reviewers that ask.
7. Once you get to a level above 20 get rid of the farm fences (10 gold) and the medieval farm (30 gold). They don't generate enough gold and require a lot of attention. The forges are great. They generate 300 gold and for some reason the followers don't get as tired.
8. The fountain is a waste. It has to be refilled a lot and takes longer to refresh workers.
9. You only get to have 15 fried planets, so choose your friends carefully.
Hope this helps.
JupiterBlue
Hope this helps