I would just like to point something out. Just one tiny little detail. Which is kinda obvious, but it doesn't seem like it.
THIS IS NOT WOW! Really, it's not. There are no hippie night elves, no taurens, no orcs (why are there no orcs btw, the goblins bigger cousin?), there are undead but they don't do some crazy headbanger punk dance nor do they do warlocky stuff, there are no gnomes and finally: dwarves aren't explosives experts.
Seriously, I would bet money that every single page of the suggestions forums history has one or more posts involving gunpowder, explosives, guns or such. While I'm all for added knowledge of *stuff* for dwarves, alot of you are (in my opinion) just plain crazy. Dwarves doesn't equal chemical experts. Metallurgists are much more fitting. Making chemicals lanterns by only using metals = dwarven. Making medicines with only metals = dwarven. Making potent acids with metals + some heat = dwarven. Making a big keg o gunpowder and use it to blow up the mountain... not dwarven.
Once again: this is not WoW. There aren't guns (this aint ma' BOOMSTICK), not even arcanite ones. There aren't mechanical squirrels, even though they're cute. There aren't sophisticated sniper scopes made from ridicously expensive gems, even though they give +5 damage (even to bows for some reason).
While the dwarves might develop a gunpowder age way later into the game, like after a decent amount of time, like 500 years or so, you have to consider one thing: what about the humans? Since they are above ground, way more greedy, probably more inventive over a more broad spectrum (whereas dwarves only aim for metals and mechanics and smithing) coupled with their desire to leave a lasting mark (and amass alot of wealth) due to their short fragile lives... Isn't it more likely that they should get gunpowder weaponry sooner that the dwarves?
Also, final thing: This seems to be a fantasy game, I might be wrong, but I'm fairly certain it's fantasy. Tech and Fantasy makes *ugly* partners, unless done completely right. WoW didn't manage that. "Durrr, look at that giant charging demon, ok left group throw grenades and right group do hunters mark and shoot l0l0l0l!"
Anyways: /rant