Here is the full list of all 31 One Dog Story achievements.
Not enough air
Yay!
all collectables have been found
Everything in moderation
Huh, am I still alive?
Be right back
Restless mind
You’re on your own
Piece of cake
Albert has been executed
The Rat King has been destroyed
Abyss-mal fall
Jet pack found
Robot X01 has been destroyed
Brotherly Love
Bonus weapon
Rest In Peace
The Keeper has been slaughtered
I’m the boss here
Got smashed to smithereens
Hoverboard found
The Needler is neutralized
Hydrophob is dead
High jump
The Keeper of the Underworld has been annihilated
Cthulhu has been slain
You only live once
Gobbled up
The King of Slugs has fallen
Let’s play baseball