Fallout 3

(Copied over from "Last, Best Hope of Humanity")

The best advice I can offer for this achievement is to play the game Good, as it is much easier to get Bad Karma then Good Karma. When you get to Level 19, you can get the other two achievements, "Paradigm of Humanity" (Level 20 Neutral) and "Scourge of Humanity" (Level 20 Bad), as well.

Upon reaching level 19, you can either get more XP until you are just on the brink of Level 20 or you can play it safe, save at the start of the level, and work towards 20 and each side of karma.

To get karma, here are some tips:

For Good karma, give Purified Water to the tramp outside of Megaton. He will be to the right laying on some rocks just outside the gate. You can get purified water from Wadsworth at your house. (NOTE: You will only have a house if you have completed "The Power of the Atom".)

For Bad karma, well... this one is easy! Murder, steal, massacre, hit people, whatever you want to do.


ANOTHER TIP:

A friend of mine recommended saving the "Power of the Atom" quest until you reach one of the levels before those in the achievement (7, 13, 19). Once you get to the level, either blow up the bomb or disarm it, and depending on which, you will get XP and karma for completing the quest. The one problem with this is that you might not have Tenpenny Tower in order to blow the bomb up at level 7.


Good luck!

This is just an easy way to level up. I didn't discover this cheat, and I don't know who officially did, but this helped me get my last couple levels after I completed the game. I hope it helps others, too. See the video below.

As for reaching rank 30 with Good, Neutral, and Bad Karma, refer to the other solutions. They are very detailed and helpful.

METHOD: Have at least 2 Frag Mines with you and enter the Craterside Supply in Megaton. Throw your Frag Mine against the wall and quickly pick it up over and over again. You will get 6 experience points every time. It is a bit tedious, but it definitely adds up, and is very helpful when there isn't much left to do in the game to earn XP.

If the man leaning against the wall on the other side walks away, just pass time (by pressing the 'back' button) and wait until the next morning and continue. I suggest saving regularly in case something goes wrong.

** MINOR SPOILERS BELOW. **

To get this achievement, you need to reach level 20 with neutral karma.

Getting to level 20

Straightforward enough, but there are ways to achieve this more quickly. First, avoid companions.

Second, look out for the NPCs who request certain types of items, and then watch to see if redeeming those items provides XP. Two such "standing orders":

* Scrap metal in Megaton. (Easy to find everywhere.)
* Pre-war books at the Arlington Library. (Excellent per-book XP.)

Lastly, I recommend hacking every terminal, picking every lock, and attempting (almost) every speech challenge. All provide nearly guaranteed XP, without the hassle of a fight.

Karma

Neutral karma generally means that you do as much harm as good. Playing through the storyline as the traditional hero will get you a wealth of positive karma, so getting the neutral karma achievements will require you to do some evil (mostly murder and theft).

If you need a karma boost, I have two suggestions:

* At the Church of the Atom (Megaton) or Saint Monica's Church (Rivet City), donate caps. If you have a lot of cash lying around, it will be very easy and quick to get into "positive" karma.
* In Megaton, give away your scrap metal rather than requesting payment. (You still get the XP.)

If you need to decrease your karma, this is easy -- go on a killing spree in Megaton or Rivet City. (Megaton is great for using the Fat Man.) This will have some obvious gameplay effects however, so I suggest saving the game prior to this -- go get the achievement, load your save, and then continue.

Neutral karma can be a tough target to hit sometimes, so my suggestion is to check your karma after each murder / mini-nuke. Once you hit neutral karma, simply stop killing and run away until you are out of range of all angry wastelanders.

If you actually need even more karma loss, first steal everything you see, but be careful not to be caught, as it will typically provoke a gunfight. Then go on your murder spree.

Following the same basic principle as the solutions above this one, it's best to play as good and then go on a killing spree until you reach either neutral or evil. As opposed to playing it safe and leveling up all the way from 19 on different karma or by being only 50 exp from 20, instead make your saves just before you have to do the last part of a quest (Shock Value, Death From Above, and Rescue from Paradise are good examples and all provide 1000+ exp). After you have made three different saves, reach your appropriate karma level on each and then finish up the quest. If done properly, you should get all three achievements in one playthrough.

**This is just an add to many of the other solutions above.**
It is true that the best way is to start with good Karma, and then go back down to bad when reached the certain level for the achievement, but the only hard part may be dropping your karma down w/ out accidently leveling up, (due to killing civilians). My tip i have for lowering karma w/ out gaining XP is just quick tap a store owned terminal, the one in Morioraty's Saloon in Megatown works great, just tap A to access the terminal then tap B to get out, it will lower your karma and the town wont go crazy on you. Granting you a simple way, and quicker way to lower karma, and of course better than killing the whole town.
Here is a video guide, just in case.

just adjust your karma accordingly and do this(from fallout wiki):

"SKIPPING LEVELS

-- Keep in mind that this skips a level. You do not level up twice (meaning you will only be able to set points for 1 level up). With that being said, this glitch is only useful if you want a faster way to get the Achievements for reaching level 8, 14, 20, and 30.

-- Skipping levels still rewards you with the boost in Health for both levels. Maximum HP increase per level is (EN / 2) + 3.

-- You must gain enough XP to level up. You need to go through a door (to load a new area) before the Perk screen appears. Once through the door the Perk screen will automatically pop up, and you will have skipped the next level.

-- You can skip multiple levels. Once you have successfully skipped a level, just load your autosave, turn around and go through the door again before the Perk screen, and repeat.

--You can also level up past level 30. You will get the health boost for each level past 30. You cannot continue leveling up after level 30 on the Xbox 360 or PS3 using the above "level skipping" method."


It has a lot to do with timing. It seemed to be hit or miss a little bit until I got used to it. Basically what I did was once I reloaded the auto save, I'd turn and face the door. In the bottom right of the screen the words "level up" will appear. it seemed to be timed correctly if I entered the door at the moment the words began to disappear. You'll know you did it right if when you load on the other side of the door, the level up stat screen will pop up while the background is still black. a few seconds later, the background/room will load in behind the previously mentioned stat screen. then reload the autosave, which is now one level higher, until at the desired level.

The way I would get these achievements is by getting 100(or so) experience points from your desired level(in this case level 20). Then make your save just as everyone else has recommended and make sure you are at good karma. Level up to your desired level and unlock the good karma achievement.
Reload, and teleport to Dukov's Place, which is located in the overload of places just west of the Capitol building. Inside Dukov's place there are empty bottles of whiskey EVERYWHERE. Stealing all of the bottles on the pool table(main floor) and then going up the stairs, right above the door that you entered the place, is a counter with a lot more bottles ready to be stolen. Those two areas were enough to get me from very good karma down to neutral karma.
Reload a second time, steal the same bottles and then steal and kill everything and everyone in the place and you should get to evil karma.
It took about 15-20 minutes for me to earn all 3 achievements associated with a specific level.