Full list of all 41 Nobody Saves the World achievements. It takes around 20-25 hours to unlock all of the achievements in the base game on Windows.
The base game contains 34 achievements, and there is 1 DLC pack containing 7 achievements.
Obtain every achievement in the game
Defeat the Calamity in NG+
Reach max Rank on all Forms
Defeat the Calamity
Meet Astrolabus
Find the final mana fairy
Complete the Legendary Dungeon: Dragon Ruler's Alcazar
Unlock Dragon Form
Reach the max upgrade level of all of one Form's abilities
Learn the language of dolphins
Complete the Legendary Dungeon: Secret Corporation
Attain the rank of Grandmaster Knight in the Knights Guild
Reach max Rank on a single Form
Attain the rank of Grand Maester in the New League of Wizards
Earn the title of Master Fraudster in the Thieves Guild
Own one of every shop item in the game
Completely light the Dark Expanse
Reach the max upgrade level of a single ability
Locate Nostramagus
Complete the Legendary Dungeon: Witch Queen Catacombs
Do some journalism
Become an Acolyte of the New League of Wizards
Have a Form equipped with 4 Passives
Complete the Legendary Dungeon: Ancient Robot
Experience true love
Find the treasure beyond the Gulp
Join the Thieves Guild
Find 5 mana fairies
Customize a Form for the first time
Join the Knights Guild
Complete the Legendary Dungeon: Grand Castle
Make a shop purchase
Escape from Nostramagus' basement.
Upgrade an ability
Reach S-Rank on the Killer Bee
Reach S-Rank on the Mechanic
Earn all 36 Medals in the Colosseum and talk to The Dueling Faces
Be crowned the True Being
Unlock the Killer Bee form
Unlock the Mechanic form