Here is the full list of all 12 Brothers - there are A Tale of Two Sons achievements worth 400 gamerscore.
Kids usually play close to home.
For your wish to come true, you need something to throw.
It's a long walk.
Are bunnies colorblind?
Give something back which was believed to be lost.
A caged heart cannot love.
Find the right tone.
First take a deep breath.
On your feet you could never get here.
Lift, Drop, Slide, Plop!
Rest and smile, sing for a while
Patience is a virtue