Here is the full list of all 66 Dungeon of Elements achievements.
Equip a cube pet
Didn't let him teleport.
Get your demon on!
Lose to a boss while unprepared.
Destroy major earth elementals
Breast cancer awareness ribbon.
Fail to craft a ton of items.
Reset a board
Blow up 10000 bad guys
Take 1000 screenshots.
Take 100 screenshots.
Fill all 9 equipment slots.
Unlock all equipment slots
Equip entire Oceanic set.
Equip entire Big Blue set.
Beat 50 dungeons in a row with no failures.
Reach level 100.
Craft 1000 recipes
Discover 100 recipes
Wear all pieces of Dread Knot armor set
Die to Spark
Make 10,000 gold from selling items
Find 20 bestiary cards
Discver 50 recipes
Discover 10 recipes
Fail at trying the same recipe more than ten times
Fail at trying the same recipe multiple times
Failing the same attempt at a recipe more than once
Fail to craft an item.
Craft 100 recipes
Kill all rats before defeating Gigantuar.
Successfully entered a cheat.
Get defeated 25 times
Get defeated 10 times
Get defeated 5 times
100 capsules swallowed by environment
Kill Spark
Craft 50 recipes
Make 1,000 gold from selling items
Answered 'No' to a Popup Confirmation
5 capsules swallowed by environment.
Kill cubes
Blow up 1000 bad guys
Make 10 fire boomers
Craft 10 recipes
Blow up 500 bad guys
Destroy gobbos
Play the same dungeon in a row
Kill a boss without using a weapon
Make 100 gold from selling items
Finished the tutorial
Beat 5 dungeons in a row with no failures
Earn your first achievement.
Blow up 100 bad guys
Make 100,000 triads from selling items
Make 1,000,000 triads from selling items
Create Green Pills
Create Blue Pills
Create Red Pills
Create White Pills
Create Rainbow Pills
Didn't let him teleport 20 times.
Kill Spark on Hard difficulty
Blow up 50000 bad guys
Find 50 bestiary cards
Find all bestiary cards