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