Here is the full list of all 23 Pinkman achievements.
The base game contains 20 achievements, and there is 1 DLC pack containing 3 achievements.
You just reached level 50!
You just reached level 55!
You just reached level 60!
You just reached level 65!
You just reached level 70!
You just reached level 75!
You just reached level 80!
You just reached level 85!
You just reached level 90!
You just reached level 95!
You just reached level 100!
You just reached level 45!
You just reached level 40!
You just reached level 35!
You just reached level 30!
You just reached level 25!
You just reached level 20!
You just reached level 15!
You just reached level 10!
You just reached level 5!
You activated the hard mode (no checkpoints)!
You found the hidden easter egg!
You set yourself free!