Just started a new game in the latest version, with a few mods added to add new savage creatures.
I chose a start location in a savage forest / savage ocean in the hope of encountering my new creatures, but there don't seem to be any there.
My fort started ok (despite making a mistake in my equipment selection and bringing a ton of nickel ore instead of copper ore).
I found a nice area to build my fort, with a river forming a natural barrier on two sides, and cut down a few trees and built a perimeter fence on the other two. I dug out an underground farm and planted some crops, and dug a shaft down through the seashore rock to avoid the aquifer in the forest biome, then expanded outwards to create some bedrooms and a dining room. Everything was going fine (well, apart from when a waxworker fell in the river and drowned, but that was no big deal).
Things started to go a bit wrong when I accidently dug up into the aquifer and flooded most of my underground accommodation, but everyone got out in time and I built some above-ground accommodation instead (and built a well room above the flooded dining room).
A wereantelope showed up, and badly beat up a child (Cerol Alniserith), but he survived, and eventually someone thought to take him to the hospital.
Traders arrived, and I sold some of my goods to them, although my broker spent so long in meetings (or asleep) that I had to let someone else do the trading.
Cerol Alniserith turned into a wereantelope and killed my woodburner.
Elves arrived, and I traded some fish and rock crafts to them in exchange for some fruit and veg.
Cerol Alniserith turned into a wereantelope again and killed my bone carver. I probably should have done something about him, but I was busy trying to create a Viking-style great hall (combined dining-room, dormitory, and "throne room"/office), as well as digging out a new, aquifer-avoiding underground area.
Cerol turned into a wereantelope again, and killed about 16 people, earning himself the title "The Purged Famines of Metal". I decided that he clearly carried the blessing of Armok, and had been sent to my fort to weed out the weak and convert the rest into wereantelopes.
Despite the carnage, some migrants arrived, and I set to work trying to bury and memorialize all the casualties of Cerol's rampage.
Cerol turned into a wereantelope again, killed a load of people, but then got beaten to death after turning back into a dwarf. Final tally: 26 notable kills, including both his parents, plus 2 hens. Several people are also injured - I don't know if any have been infected with lycanthropy.
I currently have 14 adult dwarves (plus 5 children) left in my fort, so this disaster should be survivable, as long as I don't get a tantrum/despair cascade.