Here is the full list of all 17 hOrnyWars achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Complete Level 1
Complete Level 2
Complete Level 3
Complete Level 4
Complete Level 5
Complete Level 6
Complete Level 7
Complete Level 8
Solve Puzzle 1
Solve Puzzle 2
Solve Puzzle3
Solve Puzzle 4
Solve Puzzle 5
Solve Puzzle 6
Solve Puzzle 7
Solve Puzzle 8
Complete the game