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