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 the boss in the first expedition
Defeat Omega 6 times
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
Have 10 living skeletons in one battle
Unlock all the encyclopedia
Get all the camp items
Craft 25 items
Dismantle 10 items
Synthesize 100 resources
Die and resurrect 3 times in one expedition
Transmute 50 resources into hydrogen
Synthesize 5 resource with alchemy
See all the possible tiles
Transmute 5 resources into hydrogen
Build all the possible camp structures
Defeat Omega
Kill each enemy
Defeat the hunter 3 times
Embark on your fiftieth expedition
Find all possible types of resources
Unlock 50 chapters in the encyclopedia
Unlock a chapter in the encyclopedia
Defeat the Hunter
Dismantle a camp structure
Read 50 different dialogues
Build the river
Defeat the Priestess 3 times
Die ten times
Complete 100 loops
Dismantle 5 items
Get 5 camp items
Craft 5 items
Defeat the Lich 3 times
Unlock the ^Necromancer^ class
Unlock the ^Rogue^ class
Fill the whole map
Place 1000 cards
Embark on your tenth expedition
Drink 50 potions
Lose 100 resources
Kill 1000 enemies
Defeat the Priestess
Find 100 resources
Die first time
Defeat the Lich
Build the first camp structure
Kill 5 enemies
Embark on your first expedition