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