Dragon Age: Origins

I HAVE FIGURED OUT THE TRICK BEHIND THIS GLITCH!!!

You need to recruit the ogre before the men attacking him are killed, otherwise this achievement will not pop. Forget about all of the delete save files/cache etc described above - if you don't follow this first step the achievement will never register as the ogre is technically not a member of your party for the 'entire module' - the quest to save the ogre is completed when the archers are all dead and if your ogre is not a party member before then, he will not register this quest, therefore he will not have been a thrall for the 'whole' play-through

I know this is true becasue the first time I played the ogre died before the end. the 2nd time I played I recruited him after I killed all the men and kept him in the party the whole play-through (and yes recruited the correct one at the gate) but the achievement did not pop. The 3rd time when I got the achievement the only thing I did differently was to recruit him before the archers attacking him are all dead

hopefully this will alleviate some of the pain out there!

The first ogre you encounter (in the first area) you must enthrall to continue. You simply have to keep him alive for the rest of the mission, extremely easy if you enthrall a hurlock emissary to heal him since the ogre cannot use poultices.

You will come to an area where you lose control of the ogre and have to fight quanari, you will have to go up the left hand side and round to then hit the levers and open the gate that is holding back the ogre. At this point you must enthrall him again. A second ogre spawned at this point for me so make sure you enthrall the one that was standing by the gate.

Then continue onwards to defend the archdemon and it should pop after the final cutscene.

EDIT: For those of you for which it has glitched, some of you should be able to unglitch this achievement by doing the following,

Delete save files assocated with the darkspawn chronicles, you should also try deleting and re-downloading the DLC.
Clear the update, this is done by going to memory from the dashboard and selecting Y to access harddrive options. Then clear system cache.

Load up the game and re-install the update.

Start a new game, side objectives are not needed, I would recommend saving often and ensuring you play as the ogre to stop him getting killed, it does not matter if other members of your party die.

The Achievement is to get the orignal ogre from the start of the DLC to the end.

There is no real easy way to do this all you have to do is save regulary and if the ogre you have from the start dies load a game
and when you come to the mission kill the kurani Go up the left set of stairs i dont know why but it just seemed eaiser then going right

It should come up with the other achievement if you already have it just play throught again and try.

Achievement Un-glitching
Delete the DLC, DK_??? Saves(these are the DC saves) and DAO install file (if you have it installed on your HDD). Clear cache and turn-off the xbox for a few minutes to clear the memory (I had just attempted playing this, so needed to do this).

Then install the DLC (mine was from the UE disk) and the Game to the HDD. Start the game, update it. I then exited to the dash, before I start to load the game again and start the DLC.

IMPORTANT BIT (as I know most of the above has already been said).
Start the DLC and enthral the first grenlock (as required for your 1st mission). Then go straight to the left. There will be NO Orge, walk around a little and as soon as he spawns enthral him! Then kill everyone.

Go straight to the barricades and destroy them with the ogres throw. The KILL THE AREL mission will then appear, once the barricade mission is complete. Before going after the Arel, collect the injury kit from the box beyond the barricades and heal the ogre (he will have a serious wound).
Just keep him alive (using hold a lot). Also as stated, at the palace enthral the 1st ogre and check his disposition it should be 100% by this point.
I didn’t complete all the side quests, didn’t kill all the allies and only used the ogre for the last mission (apart from making him throw stuff and grab bosses). In the last mission I used him to punch Alistair to death (but this is not required).
Hope this helps

For those who have it glitched...This method actually worked for me, when I saw the ogre for the first time, I enthralled him when there were very few enemies left before the quest was completed (Protect the Ogre quest). The ogre immediately had a gaping wound injury. I removed it when I found an injury kit. Also before opening the gate for the ogre, wait for the lone golem to spawn that isn't with the quanaris. kill the lone golem . Enthrall the first ogre at the gate, After keeping ogre alive throughout the whole thing achievement finally popped up. I think I attempted this achievement like 9 times. Hope this helps someone.

This is an attempt to combine information from multiple write-ups, and lay it out in roughly the sequence in which actions would be taken, in the hope that this "collected" version will be helpful to others.

It should be possible to acquire both "Enthralling" and "Ogre's keeper" during the same play-through.

As stated by others, one only needs max approval from 6 different types of darkspawn thralls:

Genlock
Hurlock
Ogre
Shriek
Hurlock Emissary
Blight Wolf

(As mentioned previously, this list does not include either Hurlock Archer or Sapper.)

As others have mentioned, the most straightforward method of gaining thrall approval is to be aggressive in combat. Stay in the thick of things, and you'll see the approval ratings climb.

--

Save often. This cannot be over-emphasized. I would recommend saving every few minutes, using a new save each time. Thus if one save was made just before a battle where things went badly wrong, without adequate time to prevent the thrall you needed to preserve from dying, then you can easily reload a prior save. (Or else have 5 rotating saves, over-writing the oldest one every few minutes.)

--

City Gates

As mentioned in other write-ups, enthrall the Ogre - before - all the city guards and archers attacking him are dead. Run for the ogre as soon as the "Save the Ogre" quest becomes available, and enthrall him immediately. Then save him.

This will work even if you did not successfully preserve the Ogre on prior play-throughs. The "glitch," apparently, may not be a bug ... but instead a matter of not enthralling the Ogre early enough. Thanks to the games masta for pointing this out. I tried it, and it worked.

For Ogre's Keeper,(obviously) keep the Ogre no matter what else happens.

Enthrall any others which seem convenient, and deal with anything the dragon brings to your attention.

Defeat all the city defenders which you can find. When the area is fully cleared, loot everything in sight. There should be two gifts, one of them on the Arl's body.

Market District

There are a shortage of Shrieks, so it's probably best to keep the one from the Market District. The dragon wants you to enthrall it anyhow, so don't waste the opportunity!

If needed, execute any thrall (which is not the Ogre) to make space for the Shriek. To make it easy on yourself, perhaps choose the one with the lowest approval rating (unless that's the Ogre, in which case... second lowest). You might have the luck to maximize the surviving miscellaneous thrall's approval rating before it must be executed to make space for the Hurlock Emissary. If that happens, it could save you some time later.

Again, clear the area followed by looting everything in sight (there are some weapon and armor upgrades, gifts, and Wynne has a ring which could be useful).

Elven Alienage

When you see a Hurlock Emissary in the Alienage, if you have three thralls then execute the one which is neither the Ogre nor the Shriek. Enthrall the Hurlock Emissary. (I've not seen a Hurlock Emissary available anywhere else, and you'll want him for his heals anyhow... Ogre won't recover from taking health potions, but he will recover with the Emissary's healing.)

Recommendation: when in pursuit of "Ogre's Keeper," tweak the Hurlock Emissary's tactics, so that he will heal Ogre if Ogre's health drops under 50% (instead of "the player-controlled character" ... which means you'll need to watch the Hurlock Vanguard's health and use potions manually).

For "Enthralling," you will want to keep all three of these thralls alive.

Deal with anything the dragon instructs, and clear this area also. Loot.

Save the game just before leaving the Alienage. Your group of thralls at that point should contain an Ogre, a Shriek, and a Hurlock Emissary. (Don't overwrite this save.)

Palace District

The Palace District has two places where one can get an endless supply of dwarf soldiers, which spawn by a doorway two at a time. Remember how thralls like to see you attack stuff? Here's your big chance (x2) to show off in front of them!

The first of those doors is reached - before - you release the Ogre. This convenient location permits you to maximize both of your remaining thralls (ideally, the Shriek and the Hurlock Emissary) -- while the Ogre remains trapped and unharmed.

If you have not already maximized those two, this door is your opportunity to do so. There are numerous Hurlocks and Genlocks around, so it's easy to add either one as a temporary third thrall, and begin maximizing his approval while you're at it.

(As another writer mentioned, it is possible to verify when a thrall's approval rating has been maximized: first, save the game. Then, give any of the gifts to the thrall with possibly-maximum-approval. If there is no approval change when a gift is given, then that thrall is maximized. Load the game you just saved, and you can execute the maximized thrall to make room for another ... without losing the gift you used to verify that its approval was maxed out.)

The first "endless supply of dwarf soldiers" doorway is between where you enter the palace district and the place where the ogre is trapped. When the cut scene ends, immediately turn right and hug the wall to your right, killing all enemies in your path. The doorway you want will be to your right, in a cobblestone-covered area, almost immediately after you pass a well. It's slightly before you reach a ballista (which will be on your left). The ballista will be stationed just outside the fence which traps the ogre. The door is the first of two white ones which have vertical and horizontal metal bands, making each appear covered with squares.

Dwarf soldiers pass through the door one or two at a time, and are easily overcome.

You can max out approval for a few thrall types there. I strongly encourage keeping the Hurlock Emissary, for his ability to heal Ogre, when you're pursuing "Ogre's Keeper." That leaves two spots for other (disposable) thralls.

To speed things up, it may be helpful to first recruit some of the extra darkspawn which you do not intend to use for approval maximization, and execute them. Then they won't be obstacles to the thralls you want to impress.

Boring and redundant as it is, I recommend staying by that door and preserving your Hurlock Emissary while you maximize the approval for the Emissary, Shriek, Genlock & Hurlock. If one of those types already reached max approval before being executed to make room for the Emissary, then there's no need to impress that thrall type again.

I amused myself, a little, by running a lap around the ballista between dwarves.

Fighting some of the endless dwarves appearing at that first "doorway" near the Ogre, as described above, appears to have an added benefit: it seems to prevent the bug which causes the previously-grouped Ogre's approval rating to evaporate.

Except for the Emissary, as soon as another thrall type reaches maximum approval rating (and is verified), then you can execute that thrall to make room for a different type. Your Shriek is most likely to receive the first maximum approval, and also the first execution. (If you like that thrall type, there's another which can be acquired shortly after the second "endless supply" door mentioned in this guide).

When you have attained max approval from Hurlock Emissary, Shriek (probably deceased), Genlock & Hurlock, it's time to begin moving around toward the far side of the portcullis where the Ogre is trapped. (There's a chest by the fence containing the Ogre, on a nearby side without a ballista, which contains a mage cowl that will fit on the Hurlock Emissary.)

Defeat every opponent as you travel to the other side of the portcullis to free the Ogre. There's a named dwarf who has a gift when you loot him. Aside from the mage hat and the gift, I didn't notice anything else outstanding, but I may have overlooked something.

As soon as you pull the levers to open the portcullis trapping the Ogre(s), save the game. Don't over-write that save.

There may be two Ogres: one by the portcullis, and another which walks into the fenced area (from the left) as you open the portcullis. The Ogre who originally stood by the portcullis should be the one you want, especially when you're working on "Ogre's Keeper." If you're only working on "Enthralling," it won't matter as much if you accidentally enthrall the other one instead (it will only take longer to gain full approval from a neutral Ogre, instead of going forward with an Ogre who is already somewhat favorably impressed by you).

Immediately after enthralling the Ogre -- check its approval rating. If it's totally neutral, you probably enthralled the wrong ogre. Now aren't you glad you saved the game only a moment ago?

After satisfying yourself that you've enthralled the correct Ogre, look around. There is a blight wolf nearby, perhaps lingering in the fenced-off area where the ogre was trapped. Keep the Emissary and Ogre, and execute the other thrall (if you haven't already). Then enthrall the blight wolf.

Have Ogre hurl a boulder at the gate, as the dragon commands. Straight up those stairs is the second "endless supply of dwarf soldiers" doorway. Don't go to either the left or the right, but instead simply go straight. Continue defeating dwarves until the Ogre and Blight Wolf both reach maximum approval.

To speed things up, you could give the Blight Wolf some of the gifts you have found. You may want at least one gift to verify when it reaches maximum approval, or else hold back a few gifts to boost a new thrall's abilities (if you don't want the blight wolf during the finale).

If you have notifications turned on, you'll see the "Enthralling" achievement message on your screen.

This is the time to make any adjustments needed in your group of thralls. Thralls with higher approval ratings will be stronger, just as is true for allies / potential party members in the main game. So if you execute the blight wolf in favor of a different thrall type, this is where gifts will be the most helpful.

Fortress

Go on to the fortress and watch Ogre's health as you battle. Remember that potions won't heal him, only the Hurlock Emissary can.

It appears as if the primary target in that battle is Alistair. Defeating others won't end the game, but defeating him will (apparently regardless of the status of others). So if you're nervous about Ogre's health, try to find Alistair and conquer him soonest.

Hopefully, if no bugs interfered, you'll get the "Ogre's Keeper" achievement after the cut scene of Alistair's fall.

Congratulations!

Just to note when enthralling the Ogre at the gate check his Approval, I had it glitch twice where both the Ogres at the gate had 50% approval, it wasn't until the third attempt that I got the first ogre with 100% approval.

So I would suggest that if you do not have a high approval on the ogre you enthrall that you reload the auto save and start this mission again until you do.