Here is the full list of all 20 EatWell achievements.
Collect all five books
Die from a room with spike
Death 20 times
Have won the game of poker with death
Make 20 Balloons
Get black credit card,wing,and bow
Die from Algae pills
Use a sniper rifle kill at least 3 monsters
Get 7 props in building room at a time
Unlocking all the props
Catch all the monsters
Enter the Christmas room
Get 10 chainsaws
Summon 10 dragonets
Catch the first monster
Save by the cross
Summon Shoal Warning 20 times
Summon lighting 100 times
Get black credit card
Get 10 snow balls