Steam shows achievement names and descriptions in English in every language - the unlock conditions are translated here for reference.
Airship
Off to the Skies
Build your Airship
Ho ho ho!
Upgrade your airship to reach the winter islands
No Limit!
Upgrade your airship to the maximum
Repaint-Time Everybody!
Color your airship
Animals
Hi Henri!
Name an animal
Well Henri's happy today…
Maximise an animal's happiness
Building & Energy
Bob the Builder
Construct 500 building pieces
Unlimited Power!
Build your first energy network
Drones!
Deploy your first transport drone
Unlimited… POWEEEER!
Produce 3000 energy
Silicon Valley
Unlock all energy devices
Exploration & Discovery
Shiny!
Find a diamond
Solar Pirate
Find all loot chests
Photosynthesis
Discover all plants
ƃƃǝɹǝʇsɐǝ
Find the hourglass easter egg
HiddenWhere did the Floor disappear?
Fall from the island
Crafting & Trading
Back to the Basics
Read the survival guide
Zero Waste
Recycle for the first time
What can't you do!
Unlock all recipes
I hope your items don't get stuck…
Buy everything from the vending machine
Would you like a paper bag?
Finish all trades at the trade bot
Survival & Misc
Rise and Shine!
Skip the nighttime by sleeping
It's been a Full Month!
Play for 30 in-game days
Yum!
Eat a pizza
Hidden