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