When u start a new game u get to the character selection screen. just notice there are arrows at the side of the character selection square, as well as on pet selection square, so u ca cycle from various characters. The new classes are chosen just the same way as original ones.

when you start up Torchlight 2 there'll be a window that pops up where you can enable and disable mods , just check the mod of which you wish to use and boom , your good to go

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