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