Various General Tips
There are only three classes in the game so learn their pros and cons to find the right balance of monster-slaying power and finesse.
Try out a mixture of different skill combinations with different hero classes and weapons to find the build that best suits your play strategies.
You can always switch out your skills inside dungeons as long as you aren't in the middle of a fight.
Dual wield melee or powerful two-handed weapons have a chance to stun and push back enemies from a range. A handy one when you're trapped in a zombie horde.
The easiest way to compare weapons and armor is to look at their item level. The higher item level means better item.
The dodge roll is an excellent move to get out of trouble quickly.
Always try to take out ranged enemies first and deal with the melee enemies afterwards.
Always break those barrels as they hold riches you might need: gold, crafting materials or even health and mana potions.