Usually making addy weapons and armor gets you seiged if theres anything to seige you. The created wealth is crazy
The more to kill
don't have the pop. requirement though
only have 17 dorfs, and IIRC, ambushes start at 60. seiges at 100.
I've had ambushes with as small as 40 and sieges along with megabeasts are 80 or a bit less. At least that's what I recalls from playing experience, ambushes depends far more on wealth production. Siege size's affected by wealth production, but they don't comes unless you're big enough
ah, right. ty for clearing that up.
will magma help?
I played a lot with little (15-20 dwarves and no immigrants) enclosed forts and i definitely can say that you will get ambushes, and as many as 4-5 squads per time. No sieges though unless you kill some human diplomats, and no Megabeasts. FB's will keep coming.
Adamantine helps attracting ambushes, but it's not mandatory - you will be ambushed no matter what.
Adamantine is mined completely safely if you stick to 2 rules:
1. If a wall is less than 4 tiles thick, it's safe.
2. If a tile if 3 or more tiles away from a 4*4 pillar to the up or to the down, it's safe - that's because a tube can only shift 1 tile to side per 1 z-level.
This is tons, great tons of adamantine without any danger at all. add in suicide miner missions and repeated fortification carving and that's another ton of adamantine without any danger except for FPS.
The only thing that may really stop one from using adamantine is being too greedy to let your Proficient armoursmith waste the precious metal for no-quality armour.