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Lost World is an experience featuring TWO profiles:  one that offers a STALKER-inspired hardcore survival overhaul for Fallout 4 and another that offers a Metro-inspired hardcore survival overhaul for Fallout 4.  After installing, you will be able to switch between both as you please.  Both profiles feature unique visuals, gameplay systems, soundscapes, and a completely reworked foundation that will make it feel like you are basically playing an entirely new game set in the world of Fallout 4.  Vanilla quests are still playable, though they are not tested and are not the focus of Lost World.  In Lost World, you are alone and must live off the land to survive while taking in harsh, gritty, breathtaking visuals and facing unforgiving combat.  Both profiles feature their own unique ENB preset for custom-tailored visuals and great care was taken to make both feel unique enough for you to want to try both; even though they essentially share the same foundation.

My computer specs for reference:

CPU: i7-9700k

GPU: RTX 2070 8GB

Storage: Samsung EVO 1TB SSD


OS: Windows 10

Resolution: 2560x1440

With this modlist, I sit above 60 FPS in every area that I can otherwise in vanilla. Even though Fallout 4 is a 5 year old game, it can still be very intensive on CPU and GPU resources, especially when heavily modded. Take this into account before starting to ensure your system is strong enough to handle everything being thrown at it with this setup. Also take note of the fact that no matter what mods you use, Downtown Boston will always suffer heavy FPS drops due to poor optimization of the base game. This occurs no matter how good your hardware is and how solid your modded setup is. There will be performance options detailed later in the instructions on how to run this experience for those on less powerful hardware.

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               Things to Check Before Installing:

1)  Ensure you have a LEGAL steam copy of Fallout 4 with ALL 6 official DLC (Automatron, Far Harbor, Nuka World, and the 3 workshop DLC)!  These are absolutely required with no way around it.  The easiest way to obtain these is by purchasing the GOTY Edition or Season Pass on Steam.  You do NOT need the Ultra High Resolution Texture DLC.  Uninstall this DLC if it is installed!

2)  Set your game language to English in Steam.

3)  Ensure that Fallout 4 is NOT installed in the default Steam location (Program Files x86).  See the Before You Install section below on how to move your steam library if it is.

4)  Do a clean reinstall of Fallout 4 by following the Before You Install section below.  Dirty, outdated installs of Fallout 4 are the number 1 cause of issues in Wabbajack modlists!  Start the game once via Steam after reinstalling.

5)  If you have been using Vortex you must use its Purge feature to purge all of its mods out of your game folder.  Do not use Vortex while playing with Wabbajack modlists!

6)  Carefully read the instructions below.  This experience WILL NOT WORK FOR YOU if you ignore anything written here and we will not help you.

Step 1 - Before You Install

Click below to expand As with any modlist, it is recommended you start with a clean install. Uninstall Fallout 4 through Steam if it's already installed (yes even if you already have a modded setup this is the safest approach) then proceed to Documents/My Games/Fallout 4 in File Explorer and delete everything inside that folder. Then navigate to wherever you have installed Fallout 4 (steam/steamapps/common/Fallout 4) and delete everything left inside that folder. Now you must install Fallout 4 in a non-Windows Protected folder (NOT within Program Files, Program Files x86, Documents, Desktop, or any other other protected folders on the OS/C Drive). The default install location for Steam games is in a Windows-protected folder Program Files (x86) which we do NOT want as it can cause many issues with permissions and read/write access to your game files. If you already have a Steam Library set outside this default location, you can simply install Fallout 4 there. If you currently only have a Steam Library created with games being installed to the default Windows-protected folder on your C drive, please follow the steps below based on whether or not you have a separate hard drive from your OS drive. If you have another hard drive in addition to your OS drive: * Open Steam and click on Steam in the top left corner then click on Settings. Go to the downloads tab listed on the left panel that opens and select the Steam Library Folders option. When the popup appears, click on the plus button to the right of any listed drives and then create a NEW FOLDER on any of the other drives (not your native C Drive where steam default installs to) and click select. A new steam library folder will be created on your other drive in this new folder (reference image * Navigate to the Library section of Steam where all of your games are listed and click Fallout 4 then choose to Install Fallout 4 as per usual, but when prompted to choose an install location, specify the new SteamLibrary folder you just created on a separate hard drive instead of the default location on your OS drive and proceed to install as per usual. If you only have one hard drive for your computer (the OS drive) and your Steam games install to the default location in a Windows-protected folder: * Use this tool ( to create a new Steam library in a non-protected location on the same drive as your current library. By default, Steam only allows you to have one Steam library instance to install games to on a single drive so this is the only safe way to create a new library outside protected folders for those who only have a single hard drive. After the new Steam library is created, install Fallout 4 from the Library section of Steam where all your games are listed and specify this new library folder as the install location. In either case, make sure you LAUNCH Fallout 4 through steam when installation is finished to allow the game to set registry keys and create the initial game configuration ini's. You should see a popup notifying you that the launcher is configuring your settings based on a preset that matches your hardware. After clicking OK to the popup, launch the game to the main menu and exit. Lastly, right-click on the listing for Fallout 4 in the Library tab of Steam and select Properties... Under the opening General tab UNCHECK the box next to enabling Steam Overlay in-game. Under the Updates tab set the first drop-down for update method from Automatic Updates to "Only update this game when I launch it" so that any potential game updates don't mess with your modded setup.

Step 2 - Installing Lost World

Click below to expand Download Wabbajack from the home page (blue download button) Place Wabbjack.exe in a new root folder on one of your drives (e.g. E:/Wabbajack). Run this exe and then once Wabbajack is fully installed open it and select the big Browse Modlists button on the left. Search for Lost World among the offerings here. You can filter by Fallout 4 at the top to help your search. Then click the download button for the Lost World listing. You’ll then have to specify 3 paths for install. Target Modlist: Should automatically be specified after selecting this in the UI. Installation Location: The location where this modlist will install to. Create a new root folder ideally on the same drive as where you have Fallout 4 and Wabbajack installed and path to this folder here (e.g. E:/Lost World) Download Location: Will default to a Downloads subfolder within your installation location path. It is fine to leave this as is unless you want the downloaded archives to go to another folder/drive where you have more space which you can specify here. Avoid using Windows-Protected directories for all of the above (Program Files, Desktop, etc.). Click the Play button and if you are a Nexus Premium user it will all automatically go through everything for you. Otherwise you will have to click through and download for each mod. Check out our Discord server linked at the bottom of this page for support if you have any questions or follow this video tutorial on how to install Wabbajack modlists if looking for a visual aid:

Step 3 - After Installing Lost World

The video above outlines the entire post-installation setup process.
If you watch the video above, you can skip the Game Folder Files and
MCM Configuration/Actor Replacement Holotape sections below
and just read the Beginner's Guide to Lost World.  It is recommended
that everyone watch this video regardless as it is a helpful visual
aid to assist you in setup and ensure you do everything correctly.

Click below to expand Once everything is finished Wabbjack will turn green and say Installation Complete. If you have any issues installing please reach out in #lw-support channel on our Discord Server ( and we will respond ASAP! The video linked above serves as a visual walkthrough of how to do everything in the After Installing Lost World section so you can watch that instead of reading through this if you prefer, or just watch it as a visual aid to make sure you did everything correctly. Go to the folder where you installed this modlist to and open the folder within called Game Folder Files. Copy ALL of the contents within the folder named Game Folder Files to your game directory (where the game is installed; i.e. steamapps/common/Fallout 4). Make sure you copy all the contents WITHIN the Game Folder Files folder to the ROOT of where the game is installed (where the game’s executable is) (reference image if you are confused DO NOT COPY THE ENTIRE MODLIST TO YOUR GAME FOLDER. DO NOT COPY THE ENTIRE GAME FOLDER FILES FOLDER TO YOUR GAME DIRECTORY! ONLY COPY THE FILES WITHIN THE GAME FOLDER FILES FOLDER! Now open the ModOrganizer.exe from within the installation directory for this modlist (ONLY use this executable! DO NOT use any pre-existing MO2 instances you may have installed). In the top-left corner, there is a profile drop-down where you can choose between the Lost World - Metro and Lost World - STALKER profile. Key differences between them are detailed in the Beginner's Guide to Lost World below. Once you decide on which profile you want to play, you must copy the contents of the appropriate ENB preset into the game folder as there is not one activated by default. You must copy the contents WITHIN the Metro ENB OR STALKER ENB folder into your game directory right next to the launcher depending on the profile you are playing (reference image otherwise watch the video linked above; To change ENB presets when you change profiles, delete the enbseries folder, enblocal.ini, and enbseries.ini in the root of the game folder and copy the contents from the other ENB preset folder into the root of the game directory in the same way. Lost World has no ENB preset by default so you will have incorrect visuals if you don't do this. Make sure you are using the correct ENB preset for the profile you are playing. Watch the video linked above if you are uncertain on how to do this! MO2 should default to F4SE as the executable in the top-right corner of MO2 so then click the Run button next to the F4SE executable listing to play!

Game Folder Files - Very IMPORTANT!  Do this!

MCM Configuration/Actor Replacement Holotape - Very IMPORTANT!

Click below to expand This section of the documentation is presented in the video linked above if you want to watch that instead of reading or want to have it open as a visual aid and confirmation that you are doing things correctly. Read through this VERY CAREFULLY to ensure the best possible experience for you. After starting a new game and exiting the vault, you will be prompted to select a preset for Gas Masks of the Wasteland. It is recommended you select Immersion to start so you aren't being irradiated while trying to set things up. This will be changed by the MCM settings preset later after you apply it. Wander around the vault entrance (do not go inside the vault!) until you see this message appear that says “START NPCS Travel Version 295” in the top-left corner (reference image It should take only a minute or two for this to appear indicating all mods have loaded in including NPCs Travel which loads last. If you are waiting a long time for it to appear and are unsure if you missed it, open your Pip-Boy and go to the Misc tab and the [NPCs Travel Config] holotape should be listed at the top indicating it loaded in but you just missed the message prompt (reference image Once you see that message/holotape appear, you can continue below. Do not continue until this happens as all mods need to load in before you enable the MCM settings preset! SKK Actor Replace & Respawn Manager Holotape Enable this mod by activating it from its holotape under the Misc tab in the Pipboy (click all under the misc tab to see all items listed in this tab including this holotape; see reference image Now very carefully follow the steps below to correctly configure the mod to replace vanilla actors with custom actors from mods installed in the guide. * Activate the mod with the option that appears when you open the holotape. Then set everything in the initial menu as shown in this image ( and click submit changes at the bottom. * Click the actor keywords menu listed at the bottom of the main menu after submitting changes (reference image and set it exactly as shown in this image ( (the only change you need to make is to click on the last line in this menu for custom keyword files so it shows it as SELECTED) and then submit changes * Lastly go to the replacement actors menu and scroll to the bottom to change the custom actor file line to ENABLED as shown in this image ( and then submit changes. You can now close the holotape. MCM Settings Preset If you are playing the STALKER profile you are now ready to apply the MCM Settings preset per the instructions below. If you are playing the Metro profile, you must FIRST walk away from the vault exit until you receive text popups relating to Nuclear Winter. Select any option for these popups as your selections do not matter as they will be overwritten by the MCM Settings preset regardless. Once you've made selections for all 3 popups give a few seconds for Nuclear Winter to activate before applying the MCM Settings preset. You must trigger Nuclear Winter by walking away from the vault and clicking through the NW popups BEFORE applying the MCM Settings Preset or you will have to deal with its gameplay systems which are intended to be disabled in Lost World. You can always re-enable the MCM settings preset at any time if you make a mistake. WARNING! On the Metro profile applying the MCM settings preset will activate Survival mode for Gas Masks of the Wasteland and you will immediately be required to equip a gas mask and filter and keep a mask on at all times when outdoors. Be ready to do this immediately after applying the preset on the Metro profile. You only have to wear a mask during rainy/radiation weathers on the STALKER profile. This preset can be changed at any time for either profile in the Gas Masks of the Wasteland MCM. These are just the defaults. To apply the MCM settings preset, open the Mod Configuration Menu (MCM) by pausing and clicking the Mod Config option at the top. After opening the MCM, open the top MCM Settings Manager listing and you will see a listing in the right pane under the Presets section titled LW MCM Settings with an option next to it to apply which you should click now (reference image Click yes on the prompt to apply the preset then reload the MCM when prompted on the left and now everything will go into effect! You can change any MCM settings per mod to your liking afterwards here but everything has already been set to provide the ideal, intended experience. Take the time to read through all the settings options in each MCM entry as things like hotkeys for the gas masks mod and positioning of its HUD elements as well enabling/disabling certain survival features can be configured here. Save the game, close Fallout 4 entirely, and then relaunch via F4SE in MO2 as per usual and load that save and now you can begin playing!

Beginner's Guide to Lost World - READ THIS BEFORE STARTING!

Click below to expand Everything below is required reading before starting Lost World! There is a LOT about Fallout 4 that this modlist changes so it is in your best interest to get familiar with everything as written below. If you ask a question on our Discord server already answered here, I will simply point you back here. Before starting, you must select which profile you want to play. Remember to copy the ENB preset files into the game folder root (next to the F4 executable) per the After Installing Lost World section of the documentation above! Here are some key differences in the Metro profile to be aware of (but know that these differences can easily be changed to your preference in the MCM as per usual; these are just the defaults. Most elements of gameplay can be adjusted in the MCM so be sure to check through there for all the available options!): -Metro profile is generally more FPS intensive than the STALKER profile due to NAC X -Greater focus on eurojank/makeshift weapons in the Metro profile -GMOW is using the survival preset by default instead of medium (precipitation weather only) after you apply the mcm settings preset so expect to have to put on a mask as soon as you apply the preset and always need to wear one. Being outdoors is a luxury and NPC's should always be wearing masks -Combat is generally less harsh with slower time to kill and no player bleeding or lethal headshots on the Metro profile -Slightly less harsh survival/needs settings on the Metro profile -Generally more enemies and more lethal enemies in the Metro profile -More forgiving loot drop/chances in the Metro profile Hotkeys (added by mods) B - examine corpse (for Hunter of the Commonwealth) P - check weapon (to add it to list of valid weapons that can be used for Hunter of the Commonwealth) G - equip/unequip gasmask (must manually equip one via the pip-boy first) L - replace gas mask filter (must be less than 100% condition) H - Toggle gas mask condition HUD elements N - wipe mask Z - check ammo U - lower/holster weapon (hold to holster) Leaning STALKER-like leaning is not in the modlist by default. Uneducated Shooter ( is the mod that adds it but due to personal issues I have with the mod I have decided not to include it officially. You can download and install it yourself like any other mod and place it anywhere in the left pane of MO2 without issue if you want to use it. This is the ONE exception for added mods. Adding any other mods will void support for you and we will not assist you if you run into any issues! Nuclear Winter (Metro Only) Although this is mentioned above in the After Installing Lost World section, I need to reiterate that the gameplay systems of Nuclear Winter (body temperature regulation) should be OFF by default after you apply the MCM settings preset. Nuclear Winter is only used for some custom edits, visual effects, and clothing. Remember you must apply the preset AFTER Nuclear Winter activates a few feet away from the vault with its popups in order to disable the gameplay systems. Apply the preset again if they are enabled. You can enable gameplay systems from Nuclear Winter in its MCM at your own risk as these are entirely untested. I have included patches for it where applicable if you want to try it, but you will notice that some armors/clothing and locations may not consistently register with the temperature system, therefore it is disabled. Workshop Mode Scrapping of most items is disabled and the build menu is very limited in Lost World. You are not intended to be able to build settlements or scrap for cheat materials and instead must live off the land and make use of player homes and safehouses. Free that aspect of gameplay from your mind for Lost World. You are alone. Only elements of the workshop required by quests are left intact. Gas Masks -After applying the MCM Settings preset (go back to the After Installing Lost World section and do this if you haven’t!) the game will start on the Medium preset for Gas Masks of the Wasteland on the STALKER profile (only precipitation weathers require a gas mask) and the Survival preset for the Metro profile (you always need to wear a gas mask outdoors). You must equip a gas mask as appropriate based on the profile you’re playing which will be indicated by screen haze and a choking sounds as well as a quick uptick in rads. -You will need to also equip a gas mask filter from the Aid section of your pip-boy when putting on a new mask for it to work. You can craft mask filters in the universal workbench and be sure to check the MCM entry for GMOW to modify hotkeys or change the preset (immersion preset for example makes it so that NPC’s wear masks but you never actually need to wear one). -You can also drop the Gas Mask Database Manager item by selecting it in the MCM entry for Fallout 2287 - GMOW and then dropping it from the Aid section of Pip-Boy inventory and place any mask inside of it for GMOW to recognize it. If a mask you equip isn’t working to filter radiation, you must add it to the database in this way. Universal Workbench Lost World includes a patch for the universal workbench from Equipment and Crafting Overhaul that adds all crafting recipes to it. Grab this next to the vault 111 exit and you can construct just about anything anywhere so long as you have that on you. Weapons can only be constructed using the workshop version of the Universal Workbench (found under the crafting sub-menu) and this version also links to workshop resources whereas the mobile version does not. Disabling most mods in the setup may break this patch causing recipes to disappear and newly-added items will not be included. Not all weapons/equipment can be crafted and some must be found naturally across the Commonwealth. Don’t forget to pick up the Universal Workbench when done using it. There is an option for auto-pickup of the workbench after use in ECO’s MCM if you tend to be forgetful. New Locations There are several premade player homes/safe houses and new questlines/locations added for you to explore. Not all of these will appear on the map or as a quest in your pip-boy immediately so keep exploring and you're bound to come across some hidden gems. Power Armor This experience is not intended for power armor use. We've done what we can to debuff/remove any sets where possible and wearing a gas mask can result in you being stuck in power armor and having to reload the save, so be sure to remove your mask if you feel absolutely compelled to enter one. With resource management and other active effects there is no real benefit to PA usage in this setup. MAIM Be sure to read through the MAIM mod description ( and MAIM Lite guide ( for information on ailments, healing items and their use, and general combat information. All healing items can be crafted at the universal workbench. Most aspects of this mod can be configured in the MCM. If a healing or rad item is not working, make sure you holster your weapon and stand still before using it. If that doesn’t work, try saving and reloading the save or resetting MAIM within its MCM. Camping You can craft camping gear in the universal workbench and set up anywhere a cooking pot, tent, and sleeping bag, like a true STALKER. You must drop the camping items from your inventory to "place" them for use and don't forget to pick them up when done! Harvesting Corpses You can butcher corpses for food and XP using the hotkey for Hunter of the Commonwealth (B to examine by default and P to add an equipped item to the list of suitable harvesting tools. Look in MCM settings for this mod to see or configure any hotkeys and don't forget to look at other MCM entries for configuration as well)! FPS Cap FPS is capped at 60 by default as intended as running Fallout 4 above 60 FPS can cause issues/break scripting. It is advised you leave this cap in place, but if you feel you must change it, double-click the High FPS Physics Fix in the left pane of MO2 and go to the INI files tab and on line 58 set ingamefps=61.0 to 0.0 and that should disable the FPS cap. If you have any other questions related to the above information or anything regarding the modlist including performance/visual/crash issues, please join our Discord server for further assistance!

Important Information About Lost World
(Optional, But Highly Recommended)


Click below to expand Lost World includes its own ENB preset that you placed in your game directory from the Game Folder Files folder after installing this modlist. If anything isn't to your liking visually, please check out my How to Configure ENB Presets Tutorial ( to learn how to configure any preset to your preferences. In order for this preset to look as intended for you and for the game to look as visually striking as possible, I highly recommend your calibrate your monitor both through the NVIDIA/AMD Control Panel (right-click Desktop and the option should appear, then for NVIDIA in the left side panel click Adjust desktop color settings under the Display header, and I'm not familiar with how to do this for AMD) and through Windows display calibration (reference image; search for Calibrate Display Color in your Windows search bar or Windows settings panel).

Performance Tips

Click below to expand This is not a very intensive setup and should be able to run above 60 FPS on most modern hardware. The Metro profile is more FPS-intensive than the STALKER profile due to NAC X. My hardware is listed at the top of this page for which I am able to maintain a constant 60+ FPS at almost all times without any distracting FPS drops or extended stutters. If you are on older hardware (the kind that struggles to run any modded setup or even the game in vanilla) you may want to consider the options below. General tips for saving performance on EITHER profile: * In the MO2 INI editor, set fshadowdistance= and fdirshadowdistance= to 3000 for both in fallout4prefs.ini * In the ENB GUI (open with the END key), under the Effects tab on the left, click the checkmark next to Enable SSAO so that it is unchecked and thereby disabled. The lack of AO is hardly noticeable in this setup, and it drains a lot of FPS having it on. * Simply disable the ENB preset altogether while you play by pressing the F12 key on your keyboard. More meant as a last resort as you will not receive the intended visual experience but FPS cap and other fixes from ENBseries will remain intact. * Set the game resolution to 1080p if playing at a higher resolution (WJ defaults to your monitor resolution). Open MO2’s INI editor and switch the isizeH and isizeW values to 1920 and 1080 respectively under the [Display] section of the fallout4prefs.ini tab (reference image If none of these options work for you, please join our Discord server and we have other solutions that may help you get to a suitable FPS!

Buffout and Crash Logs

Click below to expand If at any time you crash while playing this setup, a crash log will be produced by Buffout in your Documents\My Games\Fallout4\F4SE folder and will be named something along the lines of crash-2020-12-04-23-32-30.log. Please share these with me in our Discord server ( and I will attempt to troubleshoot the cause. I haven’t come across any repeatable, avoidable crashes yet in the latest version of this experience!

Important note for streamers/content creators:  The Metro profile includes a mod called Complaint of the Commonwealth (COTC) which MAY trigger a (likely false) copyright claim on your video.  You can dispute this claim or if you want to be on the safe side, disable (uncheck) COTC and COTC 1.1.1 in the left pane of MO2 under the Audio section if you want to avoid any potential issues
(reference image

For whatever mods you install over this experience, you do so at your own risk/discretion as our support is limited only to what is available in the experience already. Do not expect support if you haven't read through this entire page of documentation or if you have modified the experience in any way.  Check out our Resources Hub if you want to learn more about creating your own experiences!

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