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