Here is the full list of all 8 Romance of the Three Kingdoms: Legend of CaoCao(Tactics) achievements.
Conquer other Domains.
Achieve victories in battles.
Try fusing your Artifacts.
Level up all the Commanders on your Commanders List.
Promote your Commanders via Manage Commanders menu.
Recruit all Commanders from a Banner that has six or more Commanders.
Upgrade all Commanders from a Banner that has six or more Commanders.
Train all Commanders from a Banner with six or more Commanders.