‎Titan Fury
apps.apple.com
‎The Time of Storms has passed, and a new world is emerging. Command epic Titans, train your armies, and become the hero who will save the world of Aurica! Titan Fury is a mobile action strategy game where gigantic Titans command the battlefield, and armies crash together in epic battles. Whether yo…

No upfront cost. In app purchases available but not mandatory. Ads only if you choose to watch one for extra coins (not needed). Funny story too