Here is the full list of all 21 Numina achievements.
There are some things you only think about when showering...
What lies beyond?
A special little plant. Brings back memories...
Should you open it?
What secrets does this tower hold within its walls?
Where to hide all these gold ingots?
Some folk just like their dairy beverages.
Ever felt yourself deeply immersed in a good book? So much that you completely forgot your surroundings?