Some casual alternatives to Dwarf Fortress include Gnomoria or Rimworld. They do not have the same level of depth, but they're enjoyable.
DF is certainly deeper, but Rimworld is much more approachable to the average player. I would argue that Rimworld is also significantly more moddable than DF is. While with DF you can change the raws, Rimworld allows modifying some of the base game code, so you can do way more with Rimworld mods.
HN crowd might be impressed by the scale of the contributors though. Last I checked it has over 1.1k contributors. Just cloning the repo takes a while.
You have to build a shelter, craft some rudimentary weapons, hunt, and then survive your first raid.