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