Full list of all 42 Kalimba achievements worth 1,500 gamerscore. It takes around 20-25 hours to unlock all of the achievements in the base game on Xbox One.
The base game contains 27 achievements worth 1,000 Gamerscore, and there are 3 DLC packs containing 15 achievements worth 500 Gamerscore.
Completed the Gravity room
Completed the Bouncing room
You got a golden totem piece
Save the Underworld by defeating The Snake
Save the Middleworld by defeating The Twins
Save Kalimba by defeating The Bird
Find all challengerooms
Achieve an all golden Underworld totem
Achieve an all golden Middleworld totem
Achieve an all golden Upperworld totem
Get an all golden totem pole
Defeat a boss without dying
Achieve a golden coop totem piece
Achieve an all golden coop totem pole
Complete the Color room
Complete the Fragile room
Complete the Freezing room
Complete the Precision room
Complete the Floating room
Complete the Challenging room
Complete all the rooms
Get a score higher than 50 in a Metaspace
Re-assemble the menu pyramid
Complete all co-op levels in Shorthanded mode
Complete the game with the ol'school mode enabled
The arm that holds the tree can also hold the totem
Complete a level without dying and always pressing right on the joypad
Kill 50 seekers
Tumble into an end level totempiece
Complete a game of Llama
Beat any Hoebear time in Puma Mode
Achieve an all golden The Dark Void Solo totempole
Complete the Dark Void
Set a time in all levels in Puma Mode
What goes up, must come down... and then go up again
Discover the Dark Void
Get a gold totem in every level. Finish Shorthanded, Old Skool, and Puma Mode.
Achieve an all golden The Dark Void Coop Totempole
Complete the Dark Void co-op
Squash the seeker in "Jeffmoldblum"
Squash 12 seekers at once
Play through "DJ Steelface" twice, in one go, without dying