for an early access game yes. it feels really well done already. it DOES lack some biomes still but these will get added later for free. and you can reuse your existing character and world for them unless you fully explore the ENTIRE worldmap..... which isnt needed at all to get to max of current progression AND build a giant base on top.

so does it FEEL complete? yes. for me atleast. IS IT COMPLETE in reality yet? no.