Here is the full list of all 24 Bionic Heart achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Mark & Julia
Julia the fortune-teller
Richard's menace
Bionic... hearts
Luke marries Tanya
You escape to Mars
Tanya had a soul too
Tanya kills Luke
Not an illusion
Tanya kidnaps Luke
Tanya is a serial killer
Luke becomes a robot
Luke is killed by Julia
Luke and Tina prisoners
Jealous Tanya kills Helen
Tanya is arrested by police
Luke tries to shoot Tanya
Luke never meets Tanya
Luke ends his life in jail
Tanya loves Luke
Luke the great scientist
Luke's sacrifice
A new dawn
Happy Ending aka master fanservice ending!