>>718052512
world was activated which drops framerate by 60%-ish from the get-go.
world activation broke annual sieges, meaning unless you embark directly next to a Goblin Fortress you'll probably never get attacked.
In DF2012 and older, the game gradually brought in threats based on your wealth. Now you'll get like 3 goblins after 10 years one time cuz they got lost trying to go somewhere else (their army got hypnotised by ocean waves for 3 years again)
Temples and Guilds added needless busywork that was only fun the first time.
Visitors to the fort suck ass and are a security risk.
Lots of infamously strong monster combinations got nerfed, shit like Undead Giant Sponges being practically invincible for example.
DF2014 added another 300 varieties of fruit to the game which did not much of anything except make it lag more.
DF2014 also added "3D" trees. ppl are 50/50 on this.
Dwarven psychology was messed with when "memories" got added in newer versions, which basically neutered them all to being mindless samey do-nothings.
Think the difference in the personalities of characters in the Sims 2/3 versus the Sims 4.
Later updates let you send raids to other sites. In theory this is cool, like you can pillage other settlements, steal shit and start wars.
Ultimately you play with those features once or twice and never use them again, unless you're doing Necro Fort memes or something.
Basic features like the Economy from really old versions are still missing.
Steam version changed most of the hotkeys, so DF oldfags literally couldnt play because they already have that shit committed to muscle memory.
Steam features like mouse support was shit we already had 10 years ago with 3rd party tools.
Steam version also delayed any work on the Myth and Magic update by like 8 years now.