Here is the full list of all 50 Loop Hero achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Defeat Omega 6 times
Get all the camp items
Die outside of battle
Defeat the boss in the first expedition
Synthesize 100 resources
Unlock all the encyclopedia
Kill each enemy
Defeat Omega
Defeat the hunter 3 times
Defeat the Hunter
Have 10 living skeletons in one battle
Place 10 cards you didn't have in your deck, not counting ^Oblivion^
Defeat the Priestess 3 times
Craft 25 items
Defeat the Priestess
See all the possible tiles
Build all the possible camp structures
Get 10 orange items in exchange for the trophies in camp
Synthesize 5 resource with alchemy
Build the river
Transmute 50 resources into hydrogen
Transmute 5 resources into hydrogen
Read 50 different dialogues
Embark on your fiftieth expedition
Die and resurrect 3 times in one expedition
Unlock 50 chapters in the encyclopedia
Find all possible types of resources
Unlock a chapter in the encyclopedia
Fill the whole map
Craft 5 items
Dismantle 10 items
Dismantle 5 items
Die ten times
Defeat the Lich 3 times
Get 5 camp items
Unlock the ^Necromancer^ class
Lose 100 resources
Defeat the Lich
Complete 100 loops
Drink 50 potions
Place 1000 cards
Unlock the ^Rogue^ class
Dismantle a camp structure
Find 100 resources
Kill 1000 enemies
Embark on your tenth expedition
Die first time
Build the first camp structure
Kill 5 enemies
Embark on your first expedition