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