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