I manages to somehow survive this mad scenario. I think finishing off Barbarian Assault was the one that allowed me to survive (barely) for the requisite hundred turns. Never even got bronze working or archery; I survived via masses of warriors, palisades, and building all my cities on hills.
Ye gods, it was raining Hippus! Had to open up my soundtrack folder labeled "in case of emergency," to boot. Usually not even Auric earns that honor...
KillerClowns...I'm very interested in acquiring info on the contents of this so called "In case of emergency" soundtrack folder... It sounds like something I could use. 'Truth be told I'm convinced you only won because of that
folder. Hmm I'll offer to buy information on the contents of that treasure chest for..say 40 gold? (already got it in Basleraph as that seems to be your favoured currency)
Surviving this terrifying heart-pounding ordeal felt like my Khazad were the victims of some kind of genocidal conspiracy against the dwarves as the Hippus were in league with the Clan and the Barbs, and they all seemed to be beyond fanatical in wiping out the Khazad (Why!? What did us Dwarves do to you people!?) The settings for my playthrough were. (emperor difficulty/normal speed) -yes that's right emperor. I rushed out 5 cities ASAP all on hills, palisades up ASAP, and then WARRIORS and more warriors. My rule of thumb was at the VERY least 20 warriors each city, 30 is more ideal. Once you've got a decent cultural territory cast motherlode as those hills will give you extra movement and slow down the enemy. Also, try to pack your cities together as tightly as possible all on hills.
My always on civic were God King+Religion+Apprenticeship+Conquest+no membership. My economy focused on hammers/gold and food entirely. Farms, farms, farms, and mines. You can forget about researching too since filling your vaults with gold is more important than filling your head with knowledge. The farms/conquest/apprentice/godking setup combined with dwarven vaults meant I was pumping out seasoned warriors very very very fast in multiple cities.
As for when you get axemen...about four or five per city will do. They will inevitably die, so therefore it is more effective to continue on warriorspamming mindlessly.
When faced with the option of building wonders...DON'T BUILD IT (unless you are sure you have the time/warriors to spare)! Warriors are more important. Remember it'll all be over as soon as those 100 turns are up and you won't last that long if you have a shortage of warriors due to wasting time on trying to build the great library...(why would you even desire such a thing!?) Yes this strategy allows you to withstand those pesky Hippus hordes on Emperor difficulty/normal speed.
And with the above strategy, your techrate will be so low it might cause you physical pain and it feels nothing like a regular FFH game. Khazad cities in Against the Wall are more like Forts training nothing but warriors. (but I don't blame 'em)