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