Can the last boss not be killed?

Is that really the ending for normal or can he be killed?

 

That's the ending on Normal difficulty.

Different endings on Hard and Epic.

 

It's all part of the story, Gregin simulates your adventure in this sleep that is normal difficulty so you can be ready to beat him for real, which are the hard and epic difficulties.

 

Are hard and epic difficulties separate storylines, lore-wise? Because I'm pretty sure

everyone dies when you beat him in hard difficulty, I think?

 

OK thanks for the replies everyone! Likes for all!

 

The story line is more or less the same, but there are major differences. Eventually you do get to kill Zemn.

 

The only real difference between epic and hard story wise is the ending. Hard is sad, epic is happy.