Here is the full list of all 28 Gericonia 2 achievements.
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Have 200 Soldiers in your Settlement
Activate 3 artifacts
Defeat an ancient beast
Research 10 apples
Activate your first artifact
Launch your first expedition
Defeat the final boss
Employ 100 farmers
Get at least one of every upgrade
Reach 500 units of town size
Have a starving settlement
Listen to a joke or two
Return from an expedition with 300 loot
Employ 100 miners
Start your journey
Negotiate with a hostile faction
Win a hard expedition fight
Return from an expedition with 100 farmers
Research 5 sawmills
Defeat a sentinel
Possess 100K silver
Complete the game in under a year on at least normal difficulty
Have an expedition return home
Employ 100 foresters
Upgrade the wall to 15
Defeat the final boss on legendary difficulty
Win your first fight