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.
You completed the game in ol'school mode
Saviour of Kalimba
Achieved an all golden Upperworld totem
Your totem pole is all gold
Completed the Challenging room
Completed all the rooms
You found all challengerooms
Completed the Floating room
Achieved an all golden Middleworld totem
Saviour of the Middleworld
Completed the Fragile room
Completed the Freezing room
Completed the Precision room
The arm that held the totem also held the achievement
Completed a level without dying and always pressing right on the joypad
Assembled the menu pyramid
Achieved an all golden Underworld totem
Defeated a boss without dying
Saviour of the Underworld
Completed the Gravity room
Got a score higher than 50 in a Metaspace
Completed the Color room
Completed the Bouncing room
You got a golden totem piece
Achieve a golden coop totem piece
Achieve an all golden coop totem pole
Complete all co-op levels in Shorthanded mode
Completed a game of Llama
Beat any Hoebear time in Puma Mode
Killed 50 seekers
Tumble into an end level totempiece
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