I have completed main story, but it doesn't feel finished.

For example, they promised us 3 different endings, but game is linear.

Also, i think there are a lot to do for our main quests.
For example, we still need to destroy the Veil, help Celestina win her civil war, rebuild Nu Vegas 2 somewhere, help to rebuild Turbulence for Blyth...

All in all latest version feels more like half of the way. Something more like 0.5 version...

It's been discussed lately...

https://www.gog.com/forum/subverse/chapter_6

If you're still in the 30day period, refund the game, so they feel it in their sales numbers.