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