Calling: A Side Roller

So I tried playing the other classes. Fighter seems to have no range, making it nearly impossible to avoid being attacked. Wizard takes 2 damage on a nat 1, which is also guaranteed to slowly kill you. Why would you make them so terrible?

When assigning stats, trying to switch two dice will simply delete one, making it impossible to continue without rerolling. It isn't clear what each of the stats do. My first character had a -2 strength modifier, and my second had +3. I can see that these modifiers are used when I roll for attack, and it looks like a huge difference considering the low values on the dice (1-7), but they both seem to kill monsters at the same rate. Jumping sometimes just has the character repeatedly bounce at ground level, even when I roll well. Sometimes when I fail to kill amonster it doesn't attack, is that my high dex letting me dodge, high luck saving me, or just the game bugging? There's no indication of what gold or levels are good for. Also, I currently have 334/150 XP at level 2, so something isn't right there.

Got stuck when confirming character. Nothing worked.