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 Omega 6 times
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
Kill each enemy
Get all the camp items
Craft 25 items
Unlock all the encyclopedia
Synthesize 100 resources
Defeat Omega
Defeat the hunter 3 times
Defeat the Hunter
Transmute 50 resources into hydrogen
Craft 5 items
See all the possible tiles
Synthesize 5 resource with alchemy
Transmute 5 resources into hydrogen
Build all the possible camp structures
Dismantle a camp structure
Get 10 orange items in exchange for the trophies in camp
Build the river
Find all possible types of resources
Defeat the Priestess 3 times
Defeat the boss in the first expedition
Read 50 different dialogues
Embark on your fiftieth expedition
Unlock 50 chapters in the encyclopedia
Fill the whole map
Defeat the Lich 3 times
Dismantle 10 items
Defeat the Priestess
Dismantle 5 items
Unlock a chapter in the encyclopedia
Die ten times
Unlock the ^Necromancer^ class
Lose 100 resources
Defeat the Lich
Get 5 camp items
Die outside of battle
Place 1000 cards
Complete 100 loops
Drink 50 potions
Kill 1000 enemies
Find 100 resources
Unlock the ^Rogue^ class
Embark on your tenth expedition
Die first time
Build the first camp structure
Kill 5 enemies
Embark on your first expedition