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