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