Here is the full list of all 24 Soul Gambler achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Can be how a story ends
Nothing else to lose
Better aim a good conduct
This suicide is not from the squad
Celebrate the end!
Do you believe in them?
Solve a problem using violence
Sometimes is what remains in the end
You are starting to get sick of this hospital
Show that you know how to handle a woman
...but not in control
Meet someone known on the other side of the world
Be smarter than a cheater
Officially an outlaw
Save ?? and question ??
Now you do know a bit more about the game's secrets
Finish your work on time
Cut your hand and make the pact
You are no ladiesman, are you?
Don't forget your toothbrush
Maybe...
Proof of your investigative abilities
It's impossible to escape from your fate
Never give money to a stranger