Cruel and Merciless difficulty

What are the differences between cruel and merciless difficulty and normal?

normal - learning
cruel - goddamn
merciless - reroll

Oh come on.....
You could atleast try to find that out yourself before opening a new thread for that.
You literally only need to type "poe merciless cruel" and google has the answer to all your questions as the first result.

Is the experience loss the only thing different?

Difficulty levels
There are three difficulty levels: Normal, Cruel, and Merciless. You must complete Normal difficulty before you can move to Cruel, and you must complete Cruel before you can move to Merciless.
The higher difficulties have death penalties, causing you to lose experience when you die. They are 0% for Normal (no penalty), 7.5% for Cruel and 15% for Merciless difficulty. This is a percentage of the experience needed to gain the next level, not your total experience.
Losing experience in this way cannot cause you to drop down a level. For instance if you have 11% progress to your next level and die in merciless difficulty, your progress will be reset to 0%.
There are also penalties to resistances in higher difficulty levels. In Cruel difficulty, there is a -20% penalty to player resistances, and this increases to -60% in Merciless.

From here: http://www.pathofexile.com/forum/view-thread/11707

Lots of good info :)

thank you

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Dudebag a écrit :

normal - learning
cruel - goddamn
merciless - reroll

Pretty much this. My marauder is in cruel Act 3, and things are starting to get really hard. I think it's more of a gear problem than a skill tree problem, but that doesn't make me feel any better. :)

I don't even want to know how hard merciless is going to be. I'm going to have to get some better gear first...

is that resistance penalty last forever ??

You can (have to:)) negate it with resist on gear/passives

I wouldnt even try to do areas with elemental damage mobs with less then 50% resists on merciless

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Ludvator a écrit :

I wouldnt even try to do areas with elemental damage mobs with less then 50% resists on merciless

This really depends on your build/play style. A ranged character can generally get by with fewer resists. My ranger for example runs merciless with crappy resists (including -60 chaos) just fine, but that means that I don't try to "face tank" or stand in poison clouds. A melee character might have a different experience.