Here is the full list of all 25 Creator of Another World achievements.
Defeated the Evil Tower boss
Escaped from the Infinite Prison
Surpass 100th level
A child was born
Caught an oarfish
Win 10 times at the arena
Surpass 50th level
Got married
Defeated the King of the Gods
Win the snowball game
Beat the Underworld
Made a lover
Defeated the Goddess
Number of defeated enemies exceeded 1000
Defeated the Demon King (excluding unique events)
Invited someone to the group
Invited someone for the first time
Invited to Your Town
Win the maze
Created My Town
Expanded the world
Completed your first quest
Discovered a secret place
First successful cooking
Started the game