Here is the full list of all 17 Nevermind achievements.
Solve Client #251
Complete IntroSim
Complete Registration
Solve Client #418
Complete the Neuromapping process for IntroSim
Complete the Neuromapping process for Client #251
Complete the Neuromapping process for Client #418
Neuromap 3 Memories
Neuromap 5 Memories
Neuromap 10 Memories
Neuromap 20 Memories
Neuromap 35 Memories