Cleric

Clerics can use any armor, but they are restricted from using slashing and piercing weapons. They gain 1-8 hit points per level, not counting their constitution bonus, if any. Clerics are capped at level 6.


Fighter

Fighters can use any weapons and armor. They gain 1-10 hit points per level, not counting their constitution bonus, if any. Fighters are capped at level 8.


Magic User

Magic users can use very little in the way of equipment, relying on their spells to do damage and their friends to protect them. They gain 1-4 hit points per level, not counting their constitution bonus, if any. Magic users are capped at level 6.


Thief

Thieves can only use one-handed weapons, and they're restricted to leather armor. They gain 1-6 hit points per level, not counting their constitution bonus, if any. Thieves are capped at level 9.