Full list of all 24 The Plucky Squire achievements. It takes around 10-12 hours to unlock all of the achievements in the base game on Windows.
The base game contains 20 achievements, and there is 1 DLC pack containing 4 achievements.
Complete the game in Challenge Mode
Complete every Humgrump-corrupted minigame in Challenge Mode
Defeat every enemy in Deep Doom’s elevator room without dying
Reach Artia in Iron Squire Mode