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