First build!
Not unlocked yetYou built your first kingdom!
No castle in this castle!
Not unlocked yetFill a world with no castle objects at all
A quick rush
Not unlocked yetFinish a build on a 1 tile world
The Rock
Not unlocked yetPlace a rock on a 1 tile world. Not sure why you'd do this, though.
Hermit
Not unlocked yetCreate a home for the loneliest person on the planet on a 1 tile world (looks cozy, though)
Be gone, nature!
Not unlocked yetFill world with no nature whatsoever (3x or bigger)
You just built a city...
Not unlocked yetHave 3 or more houses in your build
Ocean time!
Not unlocked yetFill every tile on a 3x3 world or bigger with water
Overpopulation
Not unlocked yetHave more cavalry than houses in your world
What's the point?
Not unlocked yetFinish a build with only 1 object in a 5x5 world or bigger
Food is for the weak
Not unlocked yetFinish a build in a 5x5 world or bigger with no food related tiles
Fill it up!
Not unlocked yetFill a 3 tile world completely
Make it bigger!
Not unlocked yetFill a 5 tile world completely
Make it the biggest!
Not unlocked yetFill a 7 tile world completely
Make it massive!
Not unlocked yetFill a 9 tile world completely
Minimalism is a joke
Not unlocked yetFill every tile on an 11x11 world
The true ruler
Not unlocked yetUnlock every tile
A proper kingdom!
Not unlocked yetFill the outside of a 5x5 world or bigger with only castle objects