Here is the full list of all 24 Soda Dungeon achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Inflict burn, sleep, poison, and confusion on one enemy.
Steal essence from an enemy.
Complete your first dungeon trip.
Hope you're hungry.
Win a battle by only defending.
Complete 50 levels with only one Soda Junkie.
Reflect 100 damage from a single attack.
Complete 100% of the bestiary.
Complete dungeon level 1000.
Complete dungeon level 750.
Complete dungeon level 500.
Find a legendary item.
Complete dungeon level 250.
Find a rare item.
Purchase all basic sodas.
Have one Knight defend for another Knight.
Complete 100 levels in one trip.
Complete dungeon level 100.
Sell 100 items.
Complete 50% of the bestiary.
Slay 500 enemies.
Enter a battle in the Arena.
Slay 10 bosses.
Discover and explore an alternate path in the dungeon.