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