Here is the full list of all 19 Estigma [Steam Edition] achievements.
Get 3500 or more points in Immersion.
Get 4500 or more points in Submission.
Get 4300 or more points in Conformity.
Get 5000 or more points in Abstinence.
Get 3000 or more points in Anxiety.
Get 4000 or more points in Obedience.
Get 5000 or more points in Baptism.
Get 3500 or more points in Worship.
You just started a new jorney.
Finish Worship Insertion.
Finish Anxiety insertion.
Get 4000 or more points in Sacrifice.
Finish Sacrifice insertion.
Finish Conformity insertion.
Finish Submission Insertion.
Finish Abstinence insertion.
Finish Obedience insertion.
Finish Baptism insertion.
Finish your first insertion.