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