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.
Richard's menace
Luke ends his life in jail
Luke the great scientist
Luke's sacrifice
Luke and Tina prisoners
Happy Ending aka master fanservice ending!
Mark & Julia
A new dawn
Not an illusion
Tanya loves Luke
Luke marries Tanya
Bionic... hearts
Julia the fortune-teller
Tanya is a serial killer
Luke is killed by Julia
Tanya kidnaps Luke
You escape to Mars
Luke becomes a robot
Tanya had a soul too
Tanya is arrested by police
Tanya kills Luke
Jealous Tanya kills Helen
Luke tries to shoot Tanya
Luke never meets Tanya