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