Hey all,
I had the impression it was only possible to complete one Thief Challenge in each mission with the other posted solutions, but after completing my Master Custom playthrough and starting on the Rogue difficulty I noticed that it's possible to complete all 4 in one go if they don't say the contrary. Below I will list each challenge possible in each chapter or in each Client side-mission. I advice to play on the easiest difficulty, since the enemies won't spot you as easily as when you play on the hardest difficulty. I also recommend completing as much as possible, since you will be rewarded with more money which can be used for Focus Points, upgrades and/or tools.
Edit: If you need to do Combat Takedowns, fire a Broadhead Arrow at your foes knee/leg to make him fall on the ground. That way you won't be seen and you can still combine it with a stealth playthrough.
IMPORTANT NOTE: At the end of the Chapters, you will see an overview and depending on your playstyle (Ghost, Opportunist or Predator), one challenge will be shown along with the Hybrid one. If you completed all challenges, all of these will count towards completed even though you can only see two. To make sure they counted, press the Back-button and scroll down to Player Progression. Make sure you are on the 'Overall' page where you can see the completed challenges.
On your way to completing 25 challenges, you will unlock:
Prologue- None
Chapter I: Lockdown- Ghost: Remain undetected
- Opportunist: Extinguish 9 flames
- Predator: Headshot 4 threats
- Hybrid: Lift all loot items (60)
*** Spoiler - click to reveal ***Extinguishing 9 flames is easy enough with Water Arrows but you can also put out candles by interacting with them using the X-button. As for the Predator and the Ghost challenges: you can get all headshots without getting spotted if you pick out your victims carefully. There are quite a few lone guards roaming around, but be aware that they can wear helmets. Shoot around the ear-section of their face when they do to get awarded with a headshot. Obviously you need to shoot them with the Broadhead Arrow. All challenges can be done in one playthrough.
Chapter II: Dust To Dust- Ghost: Remain undetected
- Opportunist: Pick 10 pockets
- Predator: 10 Combat takedowns
- Hybrid: Lift all loot items (71)
*** Spoiler - click to reveal ***You will have to choose to either do the Ghost- or the Predator-challenge. A combat takedown is done by facing an enemy directly do he attacks you. When you weakened him enough, he will sit on one knee and the RB prompt will appear. Hold the button down until the circle fills up to make it count. Picking pockets is done by holding the X-button while tailing a guard with pockets on his back. You cannot do a stealth takedown while holding the RB-button to get the loot that way. Buy the wrench tool before you start this mission to be able to collect all the loot.
Looting all items in this chapter will net you:
For a complete guide with maps (thanks to
King fiShiZ):
Solution for Obsessive Compulsive in THIEF (Xbox 360)Chapter III: Dirty Secrets- Ghost: Remain undetected
- Opportunist: No kills or knockouts
- Predator: 5 aerial takedowns
- Hybrid: Lift all loot items (57)
*** Spoiler - click to reveal ***You will have to choose to either do the Predator- or the Opportunist-challenge. Doing 5 aerial takedowns can be combined with the Ghost-challenge as long as you aren't seen while doing the takedown. There are plenty of opportunities to do these throughout this chapter and you shouldn't get spotted if you let it play out a bit. Be aware that you need to buy the Wire Cutter to dismantle traps, which will allow you to pick up all loot when done correctly.
I didn't roam around the city much at this point in the game, and I unlocked the following achievement while going through the brothel:
Chapter IV: A Friend In Need- Ghost: Remain undetected
- Opportunist: Pick 8 pockets
- Predator: 10 kills or knockouts
- Hybrid: Lift all loot items (39)
*** Spoiler - click to reveal ***As said before: a pickpocket is performed by holding the X-button while tailing your victim. After filling your pockets with his ransom, feel free to whack him in the head undetected. All the other shouldn't cause you problems at this point and all can be done in one playthrough.
Chapter V: The Forsaken- Ghost: Remain undetected
- Opportunist: Take no damage
- Predator: 12 kills or knockouts
- Hybrid: Lift all loot items (106)
*** Spoiler - click to reveal ***Taking no damage in-game is easy (where not talking about mental damage you might suffer while playing this), since 75% is roaming around empty hallways. Staying undetected shouldn't be problem either since you can pick off the enemies one by one without actually being spotted. What might cause some trouble is the Predator-challenge. There is 1 human enemy, and while playing through this on my first run, I couldn't experiment on how to take out the Freaks. YouTube brought me the answer: Fire Arrows. Be sure to bring A LOT, you will only find 3 while scavenging the Asylum so make sure you have enough to finish off the freaks with them. As for looting everything, make sure you go in each room and search for hidden rooms or passages. All challenges can be done in one playthrough.
Chapter VI: A Man Apart- Ghost: Remain undetected
- Opportunist: Disable 5 traps
- Predator: 10 kills or knockouts
- Hybrid: Lift all loot items (90)
*** Spoiler - click to reveal ***None of these should cause you any problems and all can be finished within one playthrough. If you do have problems with the traps, make sure you use Focus so you can see the wires go to the box which you can disable with the Wire Cutter.
Disabling 5 traps can unlock the following achievement, if not earned before:
Chapter VII: The Hidden City- Ghost: Remain undetected
- Opportunist: 3 environmental exploits
Edit: The game says you need to do three, while the PRIMA-guide mentions two. After several run-throughs and being as thorough as possible, I noticed only two spots where you can do enviromental exploits, which makes this challenge uncomplete-able. The two spots I found are:
*** Spoiler - click to reveal ***- When you first encounter the Freaks, you can shoot a Blunt Arrow at a rope hanging from a ceiling with planks attached to it. Depending on your timing, you can either kill one or two Freaks with these.
*** Spoiler - click to reveal ***- At the end, before you reach the boss fight with the Thief-Taker General, you can see a large crate hanging from a rope. Shoot it with a Blunt Arrow to get awarded with an exploit. Important: Scale the box and jump over to the right. There is a collectible in the bed of flowers.
If you find another one, please let me know.
- Predator: 15 kills or knockouts
- Hybrid: Lift all loot items (88)
*** Spoiler - click to reveal ***All of these can be completed in one playthrough since none of these require you to be seen anyway. Environmental exploits can be completed by killing enemies using the environment or by using your gear to create a passage for yourself.
Chapter VIII: The Dawns Light- Ghost: Remain undetected
- Opportunist: Take no damage
- Predator: 14 kills or knockouts
- Hybrid: Lift all loot items (52)
*** Spoiler - click to reveal *** Be sure you have Fire Arrows before starting Chapter VII, since you might need them at the start of this chapter. After roaming around some caverns for about 10 minutes, you'll encounter human enemies again which can be killed with Broadhead Arrows or knocked down with stealth takedowns. All of these challenges can be don in one playthrough.
Client Job I: Hand Tailored- Ghost: Remain undetected
- Opportunist: Pick 5 pockets
- Predator: 1 kill or knockout
- Hybrid: Lift all loot items (24)
*** Spoiler - click to reveal ***This is an easy side-mission to complete 4 thief challenges at once one.I don't think I need to explain more here. Please note that you need to have the Razor tool in your possession in order to obtain all the loot.
Client Job II: Happy Medium- Ghost: Remain undetected
- Opportunist: Take no damage
- Predator: 2 combat takedowns
- Hybrid: Lift all loot items (20)
*** Spoiler - click to reveal ***You will have to choose to either do the Ghost- or the Predator-challenge. A combat takedown is done by facing an enemy directly do he attacks you. When you weakened him enough, he will sit on one knee and the RB prompt will appear. All the other challenges should be obvious.
Client Job III: Silence Is Golden- Ghost: Remain undetected
- Opportunist: 1 environmental exploit
- Predator: Headshot 3 threads
- Hybrid: Lift all loot items (29)
*** Spoiler - click to reveal ***In the beginning of the mission, you are able to shoot a blunt arrow to lower some crates which should complete the Opportunist-challenge. The Razor-tool is needed to pick up all the loot and you will need some Broadhead Arrows to complete an easy Predator-challenge.
Client Job IV: The Carnal Connoisseur- Ghost: Remain undetected
- Opportunist: No kills or knockouts
- Predator: 1 aerial kill
- Hybrid: Lift all loot items (27)
*** Spoiler - click to reveal ***You will have to choose to either do the Predator- or the Opportunist-challenge since you cannot combine an aerial knockout with the Opportunist-challenge. There are only 4 guards, which can be easily dodged. Bring one rope arrow to be sure of a stealthy entrance along with some Blunt and Water Arrows.
Client Job V: Sideshow Attraction- Ghost: Remain undetected
- Opportunist: Distract 4 threads
- Predator: 4 combat takedowns
- Hybrid: Lift all loot items (18)
*** Spoiler - click to reveal ***You will have to choose to either do the Predator- or the Ghost-challenge since you cannot combine a combat takedown with the Ghost-challenge. Distracting threads can be done by throwing empty bottles or glasses but Blunt Arrows are very useful as well.
Client Job VI: Heartbroken- Ghost: N/A
- Opportunist: N/A
- Predator: N/A
- Hybrid: Lift all loot items (23)
*** Spoiler - click to reveal ***No need to bring ammo since there are no traps or enemies around! Be sure to go around the building in a clockwise rotation or in any order that suits you best.
Completing this last mission will unlock:
As well as the following (if not earned already):
DLC Client Job: The Bank Heist- Ghost: Remain undetected
- Opportunist: Take no damage
- Predator: 2 aerial takedowns
- Hybrid: Lift all loot items (67)
*** Spoiler - click to reveal ***This mission is completely optional, since it came with pre-orders (or at least here in Belgium) or it can be downloaded from the marketplace. All that aside, neither of these challenges should cause you any problems and all can be completed in one playthrough.
I believe I included anything I can possibly can offer you. If there are some changes needed, please feel free to spam the comment-section or my inbox so I can improve this solution.
Take care and stay awesome!

- MC0REBE