Final Fantasy Brave Exvius is perhaps the best Final Fantasy-themed freemium game out there. It features tons of elements from the original games, including actual town and dungeon explorations, hidden treasures, secret dungeons, and tons of lore. The game play is simple to learn but you’ll need to think critically in order to beat bosses and hard opponents. You’re frequently rewarded for logging in daily and additional missions, quests, and activities helps keep the game fresh. This is about as good as it gets for freemium titles. If this one isn’t doing it for you, but you love Final Fantasy, you can also try out Mobius Final Fantasy and Final Fantasy Record Keeper which are both pretty good free Android games.