Tower tactics.

normal progress if you play on equal footing with the computer, but if you play on the highest difficulty, I am amazed at how you manage to defeat it without having anything at the beginning, while the computer has a ton of resources and plays like a beast. If you play on equal footing, after two weeks you can have 16 mages and 8 Naga Queens, and easily clear and capture neutral castles, as well as defeat enemies, plus 2-3 giants that can carry heavy loads:D. Overall, it's an easy race. Then, sell all your resources and build Titans and go on all sorts of adventures with all sorts of riffraff.