Here is the full list of all 24 Cats in Time achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Solve level without any hints.
Wow, that was quick!
Collect all cats on one level.
Destroy everything!
I knew it!
Do nothing and enjoy the moment.
Visit every ancient Egypt location.
Collect every cat in the game.
Korben, is that you?
Catch some fish.
Find the secret level.
Everyone needs some help.
Visit every wild west location.
Visit every Greek location.
Fly away!
Visit (almost) every location in the game.
Visit every Tokyo location.
Visit every German location.
Visit every New York location.
Found him!
Visit every period in the game.
Collect all postcards pieces in the game.
Forge the sword.
Visit every underwater location.