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