The Witcher 2: Assassins of Kings
50 Achievements
1,000
50-60h
Guru
Achieve character level 35.
50
How to unlock the Guru achievement in The Witcher 2: Assassins of Kings - Definitive Guide
Credit: The core of this method comes from user "VRattleHead" on another achievements forum.
First, when you find fight dummies, attack them. At some point (not sure how many hits or the exact criteria), you'll get an "experienced" perk that lets you gain 10% more experience -- a big help. The earlier you do this, the better, but it's not essential.
Next, do as much as you can throughout the game to boost your experience from fighting, quests, whatever. From what I've seen, you need to reach Level 34 before triggering the summit in the last chapter, in order to reach Level 35 in the endgame, since you get somewhere around 1000 experience for finishing A Summit of Mages and then fighting the dragon.
Here's the important part.
If you reach this point in Chapter 3 but you still need experience, there's a fairly good way to grind for it. As long as you haven't triggered the summit (a point of no return) in A Summit of Mages, and you've done everything else you're able to get more experience quickly, you should still be able to get this by grinding.
Go east of Loc Muinne, across the bridge, to the Camp of the Order of the Flaming Rose. They're the guys dressed in red. Just go on a killing spree. If you're already well equipped by that point, it should be pretty easy even on Dark difficulty. Only the guard you're attacking will fight back, and after a few seconds, dead guards re-spawn (with a different random name), so you can just go around killing them for easy experience. It's not much experience, but it does add up and won't take too long. From what I'm seeing, it may take about an hour to gain a full level that way, which is why it's best to do this just before the end.
Sometimes they don't even fight back. I blast them with IGNI first, and that seems to help.
Level up until you're level 34 or a little higher, so that you can safely obtain level 35 from the endgame quests (summit and dragon). You could just keep grinding all the way to level 35, but that'll take longer.
If you already beat the game and didn't get the Gura achievement, just load your most recent save prior to starting the Summit of Mages endgame section, and follow the same instructions.
This isn’t easy, but there are a few ways to make the journey a little quicker.
One of the most important methods is to gain the Experienced perk which offers a +10% XP boost. This is achieved by destroying 10 different training dummies. You can do this across a number of locations in the game, but it is best to do it as soon as possible.
The earliest place to get this is in Foltest’s Camp. There are 5 dummies in the area that respawn. Destroy 10 and you’ll earn the perk.
I strongly advise doing this on your easy playthrough. This achievement requires you to complete pretty much every quest as well as kill just about every monster you encounter. If, like me, you missed or failed some quests here and there, or you think you aren’t going to hit level 35 by the end of the game, fear not. First off, the last quest, A Summit of Mages, will net you 1000XP for completing it, so you have to be level 34 before you go through with it (make a save before you do it just to be safe) if you want to get this achievement. Most importantly, there is actually a spot in Chapter III that will allow you to easily grind for XP.
The spot is located just outside the Loc Muinne city, in the camp of the Knights of the Order. These knights wear red armor and you will be able to kill them indefinitely for about 5XP every kill. They respawn almost instantly and most of the time they don’t even fight back, making it ridiculously easy to farm here. Grind here until you reach level 34, and then proceed to complete the last main quest.
IMPORTANT NOTE: Many people have reported not being able to attack the Knights at all, hence not being able to kill them. If you followed Iorveth’s path, you should be able to do this automatically, and they will actually attack you on sight. On Roche’s path, you must help Roche rescue Anais La Valette from Dethmold, and tell him to reconsider giving her to the Order, and to consider his other options. Make a save before you talk with him here, just to be safe. You’ll know you did it right if Roche says he has other plans when the Order confronts him outside of Dethmold’s hideout, because after the dialogue, a combat encounter will occur, and you’ll fight the order. After fighting them here, return to the camp outside Loc Muinne and start killing them.
To minimize the grinding, I would recommend taking on as many side quests as possible and fighting every enemy you encounter without running past it. However you decide to go about doing this, the achievement will unlock once you hit level 35.