Simple story line achievement for doing 8 quests.
After completing your first quest, "To Clockwork City", which is initiated from your collectibles ---> DLC ---> Clockwork City, you should get an achievement already.
All further quests will be received in order from the person to whom you handed the previous quest in.
The quests are:
1. To Clockwork City
2. In Search of a Sponsor
3. The Strangeness of Seht
4. Deepening Shadows
5. Lost in the Gloam
6. Unto the Dark
7. Where Shadows Lie
8. The Light of Knowledge