Here is the full list of all 60 Curious Expedition 2 achievements.
Win all rounds of the drinking contest
Collect 50 butterflies
Witness a cross-species love affair
Unlock all explorer classes
Find buried treasure 10 times
Fail Director Mode
The Royal Avalon Society: Reach max club level
Complete a year of Director Mode
Discover 500 locations
Fully complete a Cartography map on a 4-region island
Promote a character to max level
Lux Labs: Reach max club level
Finish the campaign without dying
Finish the campaign with at least 10000 total Fame
Finish the campaign on Traveller difficulty
Complete a year without your Standing ever dropping below zero
Tame the mysterious Red Elk
Successfully complete 100 dice challenges
Put on a hat
Ride a dinosaur
Complete Act III
Raise a dinosaur from egg to adulthood
Participate in a Club Competition
Bring back 500 fame of items in one expedition
Enter a Portal to a Corrupted world and return back
Kill 30 animal groups
Rob 10 Shrines
Complete 5 islands without killing anything in combat
Complete Act II
Have a Pale Mask as a member of your trek
Kill a Giant Sandworm
Learn a tribe type 10 times
Kill an enemy using the environment
Meet a ghost
Complete an island without resting
Complete Act I
Discover 15 locations
Complete an island with nothing equipped
Complete a standard expedition (non-story) without buying anything from the Ship Shop
Finish the first expedition in 1886
Complete 20 village quests
Earn 100000 total fame
Free the salamander prince
Promote a character 100 times
The Taishi Academy: Reach max club level
Kill 100 hyenas
Finish 20 three-skull expeditions
Find buried treasure 50 times
Play the entire campaign without killing anything in combat
Finish the campaign on Adventurer difficulty
Finish the campaign on Lunatic difficulty
See all campaign endings
Fully complete 5 Anthropology checklists
Complete an island with an all-animal party (excluding leader)
Get a character with 6+ mental ailments
Allow an Abomination to eat a party member
Complete Director Mode
Complete 10 years of Director Mode
Have the Inspector return to your service
Return a Pale Mask trek member to normal