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