Here is the full list of all 28 Eco achievements.
Minted First Currency.
Create a piece of artwork that generates 1000 culture.
Create a piece of artwork that generates 50 culture.
Create a piece of artwork that generates 5 culture.
Become the top ranked cultural creator when at least 10 citizens have created any culture
Create your first culture.
Create 10 culture.
Create 50 culture.
Create 200 culture.
Create 1000 culture.
Completed first contract.
Paid 1000 currency in taxes in backing-item value.