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