Here is the full list of all 17 Idle Civilization achievements.
You've completed all three Adventures!
You're probably the forefather of most of your kingdom by now! Out of 100,000 people, you're bound to have sired several thousand.
Culture is your greatest passion and your greatest weakness!
Where do these fragments come from? Nevertheless, you have enough to build a Wonder.
The free world is free to bow down to you!
You've created your first colony! The first step in colonizing the world.
We are no longer exposed to the elements, we have our first hut!
You have gained and you have lost...
You've researched Writing and can now freely express yourself.
250 new inventions all paid for by you! That makes you a scientist...probably!
Another round? Your heroes seem to like the drinks here!
Your warriors' conviction is only matched by your own.
The finest sellswords in all the world are at your disposal.
If I hadn't been there to see it with my own eyes, I wouldn't have believed it...
The only issue here is that you need infinite space in order to maintain an infinite granary.
I dare you to try and find some shade now!
We can dig no further, we've practically reached the very core of the planet.