Grimrock

I played the game in both normal and hard mode. Now I always play hard when playing custom dungeons. But what is the difference? The only thing I noticed is that the spiders seem faster? I could not notice more monsters or different ones, but perhaps my memory is not that good. Or is it maybe that the monsters have more hit points? Faster attack?

Monsters walk and act faster.

In that case, I would love a 'nightmare' setting.