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