Here is the full list of all 32 The Spiral Scouts achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Unlocked by earning the "Badge of Knowledge".
Unlocked by earning the "Imok's Trophy".
Unlocked by earning the "Pizza Party Badge".
Unlocked by earning the "Badge of Life".
Unlocked by earning the "Junkie Badge".
Unlocked by earning the "Archery Badge".
Unlocked by earning the "Looker Badge".
Unlocked by earning the "Badge of Chaos".
Unlocked by earning the "SICKEST Badge".
Unlocked by earning the "Crooked Badge".
Unlocked by earning the "Cantaloupe Badge".
Unlocked by earning the "LOL Badge".
Unlocked by earning the "Royal Badge".
Unlocked by earning the "Satanist Badge".
Unlocked by earning the "Masseuse Badge".
Unlocked by earning the "Farming Badge".
Unlocked by earning the "Funky Freaky Dance Badge".
Unlocked by earning the "Treasure Badge".
Unlocked by earning the "Meh's Badge".
Unlocked by earning the "Badge of Death".
Unlocked by earning the "Composer's Badge".
Unlocked by earning the "Exorcist Badge".
Unlocked by earning the "Pity Badge".
Unlocked by earning the "Alchemy Badge".
Unlocked by earning the "Mother's Badge".
Unlocked by earning the "LMAO Badge".
Unlocked by earning the "Dirt Fishin' Badge".
Unlocked by earning the "Time Travel Badge".
Unlocked by earning the "Botany Badge".
Unlocked by earning the "Plumbing Badge".
Unlocked by earning the "Badge of Order".
Unlocked by earning the "Jabubu's Trophy".