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.
Win a battle by only defending.
Complete 50 levels with only one Soda Junkie.
Complete dungeon level 1000.
Complete 100% of the bestiary.
Hope you're hungry.
Reflect 100 damage from a single attack.
Complete dungeon level 750.
Steal essence from an enemy.
Find a legendary item.
Complete dungeon level 500.
Complete dungeon level 250.
Sell 100 items.
Purchase all basic sodas.
Have one Knight defend for another Knight.
Complete dungeon level 100.
Complete 100 levels in one trip.
Find a rare item.
Complete 50% of the bestiary.
Slay 500 enemies.
Discover and explore an alternate path in the dungeon.
Slay 10 bosses.
Enter a battle in the Arena.
Complete your first dungeon trip.