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