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