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