No missable achievements (plus 21 unknown)
Sign in with Steam or Xbox to track your progress, and:
Achievement for playing 1h or more.
Eliminate 10 enemy units.
Achievement for a completing the tutorial.
Hold a fertility festival in one of your settlements.
Playing the first multiplayer game.
Build a bridge.
Achievement for a first game won.
Eliminate 100 enemy units.
Hold 80% more of all the occupiable territory combined.
Declare war against a much larger nation.
Achievement for playing 24h or more.
Explore 90% or more of the map.
Being very much hated by the AI players.
Being very liked by the AI players.
First multiplayer game won.
Eliminate 1000 enemy units.
Win against the Inhuman-AI.
Win a game playing as Sparta.
Achievement for 10 games won.
Creating a ballot to be voted on by others.
Casting a vote on a ballot.