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