Here is the full list of all 50 Tower and Sword of Succubus achievements.
Watch the ending.
Beat the game on "Normal Mode".
Defeat the Succubus Queen.
Collect every book.
Collect all status up items.
Collect all of the treasure in the tower.
Defeat the fifth succubus.
Charm and defeat 100 enemies.
Destroy 200 vases.
Defeat Fred, the wandering hero.
Defeat the fourth succubus.
Defeat 100 enemies.
Charm and defeat 50 enemies.
Defeat the third succubus.
Defeat the second succubus.
Defeat the Golden Slime.
Defeat the first succubus.
Charm and defeat an enemy for the first time.
Watch the opening event
Beat the game on "Normal Mode"
Defeat the final boss.
Beat the Snow Temple.
Purchase the Succubus Ring.
Join forces with the swordswoman at the tavern.
Have an audience with the Succubus Queen.
Remove the curse on the armor blacksmith.
Give golem material to a witch.
Successfully give a massage.
Beat the Desert Temple.
Cut 200 blades of grass.
Defeat 300 enemies.
Beat the Forest Temple.
Charm and defeat 30 enemies.
Sell milk to a witch.
Watch the opening event.
Unlock all achievements.
Beat the game without taking a single treasure chest.
Beat the game without collecting a single status up item.
Beat the game on "Original Mode".
Achieve a part-time work score of 10000 points.
Search for the sweetheart of the phantom Anna.
Beat the game on "Master Mode".