Here is the full list of all 63 Curious Expedition achievements.
Kill 20 crocodiles.
Sell items worth 100000 funds.
Donate items worth 100000 fame.
Create 50 anthropological studies.
Collect 50 butterflies.
Kill 10 giant walruses.
Obtain a rare creature from the beast master.
Blow up 50 mountains
Use your hot air balloon to escape an expedition.
Stay inside a portal world for 100 days.
How many abominations can you handle?
Finish a full game with a secret explorer.
Finish a full game without your standing ever dropping below 0.
Eat 500 chocolate rations.
Recruit 20 natives.
Create 50 paintings.
Recruit 5 dinosaurs.
Defeat a slave trader and free the slaves.
Complete 50 harbor quests.
Kill 100 hyenas.
Travel through 20 portals.
Kill 20 giant spiders.
Obtain 100 treasure items.
Finish a full game on 2nd place.
Finish a full game on 1st place.
Finish a full game in 3rd place.
Find and dig up 10 treasures using treasure maps.
Blow up an active volcano with dynamite.
Kill 10 giant scorpions.
Reach world 6
Kill a giant crab.
Reach world 5
Kill 10 giant birds.
Hunt down and kill the legendary hyena.
Reach world 4
True lovers don't eat their loved ones.
A chalice awaits beyond the face.
Reach world 3
Have at least 3 members of your trek be alcoholics.
Reach world 2
Revive 10 trek members at altars.
Find the unholy Blood Crown.
Unlock 13 explorers.
I just want to make sure the cat is fine.
Find an extraordinary friend.
Return what belongs to an altar.
There is something to find in every region.
Seeing London from above.
Finish a full game without selling anything to the auction house.
Finish a full game using no sanity item other than coca leaves.
Survive the tutorial.
Finish a full game and recruit nobody at the harbor or villages.
Obtain 19 golden frames.
Obtain 19 platinum frames.
Find all items
Succeed in 500 expeditions.
Visit 5 different special regions.
Headbutt a raptor.
Flee 10 times from combat.
Hatch 10 eggs.