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nah, the thing is, in diablo 2 you also get more exp with more players in an area yet the creeps et much stronger. it is exponential i think and you use this sys in so called 'runs' where it is important to have a full number of players to get more exp. like this you can level very fast and rush towards a certain point in the game. thats what i mean as a sys
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Diablo 2 was mainly created for single player and when you are more people, you dont get that more exp. And this is Diablo 3, not diablo 2 we are making :S