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