I sadly only have room on my computer for one large game, the game currently holding that spot is warcraft3. However word to the wise, if your going to be playing with someone else at all times, the fire sorc is a highly underrated class. just max out warmth, fire ball, meteor, and fire bolt(you have to spend some points on their prerequisites too). after that you should have about 20 skill points left(considering you've done the quests to get the extra ones) and you should put most of the rest on fire mastery but save one or two for teleport(and its prerequisites), teleport is easily the most handy spell to have.
also you want sig armor(full) and there's a sword, an amulet, and a ring with the name angelic something(I forgot the exact name) if you have both of those you get +2 to all skills which takes away the need for mana potions(warmth is so high).
with that set you do about 1.5-2.5k damage with maxed out fire ball(lv 22). 2.5-4k damage with lv about 14 meteor(I never got to max out this character when I played as one), also you get about +285% mana regen with the maxed out warmth(lv 22). but by doing this you give up the ability to duel and you become completely reliant on your teammates in the early parts of hell because everything has a fire immunity.