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