This is supposed to be complete quest-orientated walkthrough for the game Inquisitor.

Since my English is not good, I will try to be brief and make it easy to understand.

If anyone find anything I failed to find or mistakes I made in the article, please tell me and I will correct them.

There are still several questions which still need answers:
1. As I myself only finished the game as Paladin, I don't know who gives the promotion for the other classes. I'm eager to fill these gaps with the knowledge of players with other classes.



A mark of asterisk after the name of the quest means this quest is related to main plot.

ACT I

Entering Hillbrandt
- ask any guard outside the gate of Hillbrandt
- threaten him
or kill all the bats outside the town and go back to any guard to open the gate to the town

Investment
When you talk to the tavern owner for the first time, he will ask if you want to invest 1000 gp.
If you accept to help him, he will reward you with a large amount of money and exps in ACT III.

The Curse of Raubsticht
- Go to Place of Execution Hillbrandt, talk to Raubsticht
- ask Ellisia in the town about cure, pay 500 gp for the potion
- talk to Raubsticht
- after a while, talk to Raubsticht again
- speak with Quarim on the same map
- speak with Ellisia
- speak with Suzan at the town centre
- ask Jeremiah for permission to arrest Lotti
- talk to Lotti and defend yourself, then pick up the wax figure, and break it
- talk to Raubsticht


Stone of Ghosts
- Talk to the large stone which looks like a human face at the bottom of the Place of Execution
- buy a holy water from the church
- talk to the large stone again and defend yourself


Absent Soldier
- When you walk near the Sheriff's office, a soldier named Darmont comes to talk to you
- go to the deserted church in the upper right part of Asherbalt Cemetery
- kill Jullian
- talk to the Sheriff
* if you talk your way through without fighting Jullian, this quest fails automatically


Revenge for my Daughter
- talk to Stefen Reichmann on the second floor of the tavern
- go to Asherbalt, Olfghard locked himself in a house in the upper middle part
- you can kill him ask report to Reichmann
or you can believe him and explain the whole thing to Reichmann
or if you have already complete the quest "Absent Soldier" you can bring Natalia back to her father without finding Olfghard


Request from Olfghard
- go to Asherbalt, Olfghard locked himself in a house in the upper middle part
- go back to the town, talk to the Duke
- talk to Olfghard again
from now on, you can invite him into your party, and when he is not in your party, he stands a little south from the town centre


Magical Book
- hear the request from Ellisia
- go to Asherbalt and clean the orc camp with orc shamans on the right side
- get the book and deliver it to Ellisia


The Shepherd*
- Go to the left upper part of Dragon Rock
- open the locked hut and talk to Rupert
- go to Tree of Death to find the sheep


The missing son
- Talk to the blacksmith in the town
- go to the upper right part of Drgaon Rock, and he is in one of the locked huts
- talk to the blacksmith


Saving a paladin
- go to the lower middle part of Road to Dragon Rock and talk to the paladin near a campfire
- enter the cave in the lower left part
- talk to a dying paladin and deliver him message to the one outside


Retrieving the Weapon
- go to the northeast corner of Hillbrandt (outside the wall) and speak with Edmond
- kill the Doppleganger of Edmond at the last level in the Orc Cave and pick up the sword
- go back and return the sword to Edmond


The Stolen Relic(Promotion)
- talk to Edmond
- talk to Quarim at the Place of Execution Hillbrandt
- speak with Romius behind the church
- go to the dungeon in Hillbrandt Cemetery
- you will encounter bishop Herbertinus behind a locked gate, you need to find a cursed heart under a floor tile and break it to defeat the vampire
- get the relic and report back to Edmond
- talk to Romius again, defend yourself, and talk to Edmond again


Rescuing the Bishop*
- talk to Dominicus in the church
- find Quentinus in a cell at the last level of the Orc Cave
- give him a potion of mana
- go back to the church and speak with him
if you have the dead girl in your inventory, Quentinus will analyse the corpse together with you



Killing the Orcish Master
- go down the Iron Mine to the Orc Cave
- talk to Wrang(? or maybe a similar name)
- kill the master in the upper left part of this level
- talk to Wrang again


Perishing the Khan 1
- talk to the Weinberg Duke in the town
- go to the last level of the Orc Cave
- kill Rashgar and bring his head back to the Duke


Perishing the Khan 2
- go down to the Orc Cave, there is a ancient tomb full of ghosts
- talk to the ghost king Harlir
- kill Rashgar and talk to Harlir again
or if you already have killed Rashgar, you can receive your reward at once


The missing Baroness*
- talk to Baron Robert van Gallagan
- after you kill Rashgar, the Baroness will appear near the throne
- talk to her and bring her back to town
- talk to the Baron


Murder in the Tavern*
- you start the game with the quest
- talk to the beggar Flitz
- talk to Millward in the tavern
- find a blade near the grave of Gwen
- after "Rescuing the Bishop", Quentinus will provide you with a further evidence
- ask Jeremiah for permission to arrest Linda
- bring her to the Sheriff, and talk to him again
- go to the Baron's house and speak with Linda before the door
- ask Jeremiah for permission to arrest Riemann
- torture Riemann and burn him
- persuade Jeremiah to arrest Vallejan
- go to Drgaon Rock and defeat Vallejan
- burn him
- talk to Jeremiah and Edmond to go to Glatzburg

Tree of Death
This seems not to be a quest, but if you talk to the Tree of Death, it will release a few skeletons.

Rewards for killing orcs:
15 gp per scalp, 30 gp per head


ACT II

Glatzburg East

Silver Amulet
- talk to the beggar Braham
- talk to Wanda in the tavern
- give her 500 gp to buy the amulet
- give it back to Braham


Retriving a Book*
- Enrie asks you to fetch a book of Fae'Darlion, before she is willing to decrypt the scroll on human skin
- go to Wasteland and read the stone pillar
- talk to Enrie to get a sun amulet
- touch the stone pillar again
- enter the dungeon and touch each of the four statues to open the gate in the centre
- kill the undead and get the book
- talk to Enrie


Decryption of the Scroll on Human Skin*
- talk to Trevorius in the church
- talk to Enrie
- finish the quest "Retriving a Book"
- talk to Enrie
- speak with Trevorius


Purifying the Temple of Gods
- talk to Welfhar in the church
- go to Calibornium - Pagan Temple
- clear the map and talk to the huge statue, and kill the three ancient ghosts
- talk to the statue again
- talk to Welfhar


Threaten of Lizardman
- talk to Duke Robert Heidrick
- after completing the quest "The Robbed Ring", ask Welfhar to arrest Alphonso, then arrest and torture him to get the information of the Devil's Cavern
(you MUST ask for permission of arrest before asking Alphonso about Tom, otherwise he will vanish forever)
- go to the Devil's Cavern and proceed to the deepest level
- kill the leader Zargh and bring his head to the Duke


Remarriage
- after Yulliette is executed, talk to Robert
- go back to Hillbrandt and speak with Elisabeth van Singier about this in the Baron's house
- after finishing the quest "Kidnapping", go to the house of von Hunth
- talk to Helen twice
- give the wedding dress to Elisabeth
- bring her to Robert


The Missing Sister
- talk to Wanda
- during the quest "Missing Girls" you can find a copple necklace on a corpse in the cellar
- give the necklace to Wanda


Fortune Telling
This is not a quest. You can ask Enrie to tell your future, she needs a thorn apple which you can find at the Place of Execution Glatzburg.

You can find these quests listed in the second part of zeranix's walkthrough:
http://www.gog.com/forum/inquisitor/complete_quest_walkthrough_part_2 It's the classic - once you have enough evidence to arrest her, put her in jail, interrogate her and when she confesses and the story moves forward, you can commence a trial with her and let her burn at the stake. You have to ask Alphonso DiCerbio about them first.

I tried my luck with Thief and also got promotional quest to find relic by Baron request.
I think the only difference is who will give you new title after finding relic - Vallejan? for Priest, Baron for Thief and Edmond for Paladin.