ToME: the Tales of Maj'Eyal

I just wanted to ask if thare are any penalties for playing in exploration mode?
Can i unlock classes and races can i unlock the same achivemnets as roguelike and adventure mode or is this mode the same from a reword point of view?

I love rpg video games, and the best thing about them for me is the charecter development and customization. Recently I have been struggling with the game "dark souls" and i enjoy the charecter develpment in it emensly but my twiching hands are really bad when it comes to cooardination and...