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