Here is the full list of all 15 Alpha Hole Prison Demo achievements.
Keep a good thing going
Xenoskar: Please join me, Miguel.
Sit near Max
Get killed for stealing
Pick an unorthodox protector
Sit near Verataz
Stumble on a crime scene
Sit near Reaver
Scream for someone
Threaten to Turn Someone In
Consider making an impression
Don't pick a protector in time
Sit near Rexilllator
Be hesitant to commit to a god
Get sentenced