Here is the full list of all 22 Sudoku RPG achievements.
The adventure has begun!
The tutorial is complete!
Defeated 5 monsters!
Defeated 20 monsters!
Defeated 50 monsters!
Defeated 100 monsters!
Defeated 150 monsters!
Defeated 200 monsters!
Defeated 300 monsters!
You've earned 100 gold so far.
You've earned 1000 gold so far.
You've earned 3000 gold so far.
You've earned 6000 gold so far.
You've earned 10000 gold so far.
The tower of ordeal is available.
Passed through the forest area
Passed through the desert area
Passed through the swamp area
Passed through the snow area
The world has become peaceful!
Defeat Demon King Without Artifacts
Collect stars from all stages