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