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