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