RNG is nice but being able to control the direction of your run a bit better would be appreciated. In this game if you want to pick your weapon (which has a huge impact on how you're going to play) you just have to restart the first level a bunch.
That said, this game IS really fun, IF you go melee. Spellcasting is the secret turbo hard mode of the game, which you'll love if you're a masochist.
You run out of mana after two spells (out of the 5 on your hotbar) and then have to either run around waiting for it to come back (monsters respawn over time so this is not a good strategy) or engage in melee combat anyway, and since you have low health, this will likely result in death pretty quickly.