def try the caves. Caves have a deeper level, the Ruins... so if you've only explored the overworld, then you've missed out on a lot of gameplay... and great artwork... and gear... and trolly mobs.
Do eeeet.
EDIT: 80 days is excellent. Have you gotten to the point of using the pitchfork to make roads where you want them yet?
Also: Screenshot of your base or gtfo.