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