Here is the full list of all 36 Crashlands achievements.
Craft 10,000 floors.
Create 15 taxidermied creatures.
Finally Defeat Hewgodooko.
Wear a full set of excellent (or better).
Craft 500 walls.
Defeat 1000 Creatures.
Set foot in the Tundra.
Defeat Hewgodooko in the Bawg.
Set foot in the Bawg.
Defeat 100 Powerful Creatures.
Defeat Hewgodooko in the Savannah.
Craft 1,000 floors.
Craft 100 walls.
Defeat Blockstock.
Craft 100 floors.
Defeat the Baconweed Fairy.
Defeat 100 creatures.
Craft a legendary item.
Build THE GONG.
Defeat 100 Epic Creatures.
Craft 5 legendary items.
Defeat Baary.
Defeat Jessica.
Defeat the Ynnix.
Defeat Toomah.
Defeat the Poteti.
Defeat EMG.
Defeat IHO.
Beat the game in Challenge Mode
Beat the game on Insane Mode
Beat the first boss in hardcore mode
Get to Bawg in hardcore mode
Get to Tundra hardcore mode
Beat the hardcore mode
Beat the hardcore mode in challenge difficulty
Beat the hardcore mode in insane difficulty