Fallout 4
84 Achievements
1,600
108-139h
Cleansing The Land
Complete the quest "Cleansing the Land"
20
3.83%
How to unlock the Cleansing The Land achievement in Fallout 4 - Definitive Guide
This achievement can actually unlock without doing the devious deeds involved in this quest line. I simply did the quest for "The Way Life Should Be" and then the following quest "Reformation," and this unlocked with it. I never talked to anyone about the bombs, so I think if you just leave the quest open it will complete and unlock with the completion of the other story line. So you can get all three quest-related achievements in one run without backtracking or loading up a previous save.
Just to clarify, you have to have this quest initiated for the achievement to unlock after completing "Reformation."
Instead, I reloaded an old save after the "hacking" part with DiMA's memories and made sure to go explore the nuclear launch key.
I followed to the end of the quest and nuked the Nucleus. Achievement Unlocked.
The most easy way and to get reformation quest promise Dima to keep the secret and replace the children of Atom leader.
Warning! This achievement is missable if you have not initiated the "Cleansing the Land" quest line. Continue reading for more info on that.
This achievement can actually unlock without doing the devious deeds involved in this quest line. I simply did the quest for "The Way Life Should Be" and then the following quest "Reformation," and this unlocked with it. I never talked to anyone about the bombs, so I think if you just leave the quest open it will complete and unlock with the completion of the other story line. So you can get all three quest-related achievements in one run without backtracking or loading up a previous save.
Just to clarify, you have to have this quest initiated for the achievement to unlock after completing "Reformation."
This achievement is missable!
This quest will be triggered upon entering the Grand Harbor Hotel OR traveling to far off island west of the mainland for their respective side objectives during the "Best Left Forgotten" quest.
If you decide to travel to the hotel, follow the waypoint towards the safe room upstairs and listen to the tape on the terminal. Afterwards, head out to Fringe Cove Docks to recover the launch key and then decide which path you'll take: Destroying the Nucleus or informing the High Confessor.
NOTE: In order to get this achievement, you must choose to destroy the Nucleus without speaking to High Confessor! If you decide to inform High Confessor about the launch key and then hand over the key, the quest will fail and you will miss the achievement.
If you decide to do the other objective instead, travel to the isolated island in the west and recover the kill switch code. Now head inside the Wind Farm Maintenance Shed next to Acadia and follow the objective markers to repair the fuse box. Once seen through, deal with the hostiles beyond the security gate as you make your way to Turbine 003 to active the kill switch. Return to the High Confessor after flipping the switch to turn in the quest.
NOTE: Taking this path during the quest will ensure the destruction of Far Harbor...but it does indeed unlock the achievement.
MISSABLE
If you inform the High Confessor of the launch key and hand it over, it will fail the quest.
You will get this quest by either going for the Wind Farm Kill Switch Code or the Nuclear Launch Key from the quest "Best Left Forgotten".
If you go decide to get the Nuclear Launch Key, you will go to the Grand Harbor Hotel where you will find a safe room and listen to a tape to find the launch key is at the Fringe Cove Docks. Recover it and decide to either destroy the Nucleus or inform the High Confessor. If you inform the High Confessor and hand over the key, the quest will fail and you will not get the trophy.
If you go the other route with the Wind Farm Kill Switch code, you will have to go far west to the location DiMA's Cache. Once obtained, you will have to go to the Wind Farm Maintenance Shed near Acadia and repair the fuse box. Now go to Turbine 003 and active it. Once that is done, you will go back to the High Confessor and turn in the quest. Note that this route will destroy Far Harbor and make Push Back The Fog unobtainable, unless you completed the side quests before making this choice.
There is also a third option, if you discover DiMA's secret of murdering Avery and then you decide to keep it a secret, you will get the quest Reformation. Make sure you grab both the Wind Farm Kill Switch code and the Nuclear Launch Key before you talk to the High Confessor. Get the High Confessor to trust you by telling him of the Wind Farm Kill Switch code and make sure you let him know you need time, then give him the holotapes and have him meet you in a secret spot to either kill him or get him to leave if island for good. Once completed, go back to DiMA and turn in the quest. This will give you peace between all three factions.
1 - go through all simulations
2 - collect all the parts of the Marines’ armor (you can skip it)
3 - go to the Vim soda factory, learn the secrets
4 - complete the quest Cleansing the Earth to the end
5 - we return to DiMA and complete the quest What life should be
6 - go to Kasumi and finish the addition