Full list of all 23 Going Under achievements.
The base game contains 20 achievements, and there is 1 DLC pack containing 3 achievements.
Obtain The Toxic Mask.
Open 100 delivery cubes.
Get cursed 13 times.
Obtain The Caffiend's Share.
Obtain Hustlebones' Share.
Unlock all Skills.
Obtain The Grim Ledger.
Defeat Vested Marv.
Save the World?
Complete Swomp's "mentorship".
Obtain The Mana Press.
Complete Kara's mentorship.
Complete Fern's mentorship.
Kill a Hungry Box.
Meet your coworkers.
Go under.
Obtain Hover Hands' Share.
Complete Ray's mentorship.
Complete Tappi's mentorship.
Kill a power loader with the Exit Strategist skill.
Win a run in Impostor Mode.
Complete The Impostor's final test.
Complete the Rolodex