Holy crap, this game is super easy before floor 70. All you need is the Heal spell, and craft a bunch of Mana Regen on your rings, and you'll be able to heal a good chunk of HP every two battles, usually more than what you are going to be taking if you have the right defenses. The enemies get ridiculous after floor 60, so this strategy won't work as well. But before then, it's like a walk in the park
I have found a weird glitch/cheat: if you press the button on your keyboard that increases the sound(if you have one), it advances to the next level, but without any voice comments.
Want to win the game easily?
Then go to Training Grounds, use tab until you selected Mana Cave, and finally press and hold enter to get insane amount of Skill Points! There is a level cap on how much you can upgrade your stats.
What the heck, there is a glitch when a enemy kills one of your party member, when they have a counter attack weapon, they get up instantly and attack the enemy , but you can't control the party member though.