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