It's a World of Mage out there. Choose from one of three classes, and then kill your way to becoming an archmage.
Kill enemies to earn XP and gold, and collect it from around the map as well. As you level, you'll unlock additional spells, and grow more powerful.
From there, it's just a matter of becoming the best mage and laying waste to your foes.
Know when to run. Certain enemies are far too powerful for you to fight alone, so if you're worried you might die, run for it.
Your progress won't reset if you die, and you'll actually be leveling up the other characters, as well.