Transferring Gamepass files to Steam (Hollow Knight)

Finding the savefile

Go to the following location: C:\Users\[Your username]\AppData\Local\Packages\TeamCherry.15373CD61C66B_y4jvztpgccj42\SystemAppData\wgs\[long chain of numbers]

In the [long chain of numbers], there'll be a couple of other random-letter-folders; you usually would want the large "file" file in the same folder as "container.4", but it can vary which file it is. (it'll be in there somewhere though).

Transfering the file

Once you find the Xbox Game Pass file, copy it and paste it into the Steam save file location: C:\Users\[Your username]\AppData\LocalLow\Team Cherry\Hollow Knight. Once you pasted it there, rename it to userX.dat, where X corrosponds to the save slot.

Mods to help reduce lag

If you haven't got a mod installer yet, see this post

• No Particles | Install
• AlreadyEnoughPlayMaker | Install
• NoBlur | Install
• ShyKnight | Install (Removes the audience from Godhome arenas and Colosseum of Fools)
• Remove Laggy Objects | Install

Other things to look at: * Does my pc not real too high temperatures? * Does my pc have enough free RAM (If not, try to close background programs) * Does my pc meet the required specifications? * Are my drivers up to date

Clearing HK Registry Data

This is useful for fixing some uncommon game behaviors, more commonly associated with playing on older patches. Warning: Doing this will reset your local game achievements, including your ability to start a Steel Soul and Godseeker save.

• Guide on SRC (includes screenshots)
• Text steps:
  1. Press the WindowsKey + R at the same time to bring up the "Run" window, then enter regedit and press Enter.
  2. Navigate to Computer\HKEY_CURRENT_USER\Software\Team Cherry, then right-click on the folder, and select "Delete".

Silksong File Paths

Notes: These assume you're using Steam, with default locations. The Save Files location is the same for all versions (except for XBox Games)

• *Windows except XBox Games * 🪟

  • Save Files: %USERPROFILE%/AppData/LocalLow/Team Cherry/Hollow Knight Silksong/
  • Game Files: C:\Program Files (x86)\Steam\steamapps\common\Hollow Knight Silksong
  • To find Saves folder:
  • Press [WindowsKey] + [R]
  • Copy & Paste the Save Files path
  • Press [Enter]

• Mac OS 🍎

  • Save Files: ~/Library/Application Support/unity.Team-Cherry.Silksong/
  • Game Files: ~/Library/Application Support/Steam/steamapps/common/Hollow Knight Silksong/Hollow Knight Silksong.app/
  • To find Saves folder:
  • In the Finder, click "Go" in the top menu and select "Go to folder"
  • Copy and paste the Save Files path and press enter.

• *Linux * 🐧

  • Save Files: ~/.config/unity3d/Team Cherry/Hollow Knight Silksong/
  • Game Files: ~/.local/share/Steam/steamapps/common/Hollow Knight Silksong/

• Making backups and copying Auto Saves: See this post

Save Files

What do save files looks like?

• Each Hollow Knight save file is a user#.dat where # is the save slot for the file
• You can rename user3.dat to user1.dat to set it to your first save slot
• You can keep a copy of all of your save files by copy and pasting them into a different folder on your computer

Reverting Backups

• Automatic backups are called user#.dat.bak#, where the first # is the save slot, and the second # is the backup number. You will usually have your last three backups
• You restore a backup by deleting the main file, and then removing the .bak# part of the backup version

Modded Saves

• A modded save may also have a user#.modded.json (and similarly named backup). This file and the user#.dat are part of the save

Where are the files?

• On windows, the default path for Save Files is:
  • %appdata%\..\LocalLow\Team Cherry\Hollow Knight\
  • You should just copy and paste that path directly into the File Explorer path bar at the top.
• For other operating systems (and Xbox Games), see this post

I need a specific type of save file

• Various save files can be found in the "Saves" section of this page: https://www.speedrun.com/hollowknight/resources
  • If the file you download is a .rar or other archived format, then you will need to extract it with something like 7Zip

Editing save files

Note: If it's charm related editing, see this image for what number references what charm

• MoreSaves: With the MoreSaves mod installed, you can edit save files from the Menu, by going to Options > Mods > MoreSaves
• QoL: Opening a save with QOL installed will create an extra save file called user#.json, which can be edited using Notepad or a similar text editor
• DebugMod: While not an intended purpose, you can edit some parts of your save file using Debug, such as Nail Damage, and those changes will remain even after uninstalling the mod
• Website: https://bloodorca.github.io/hollow/

Common fixes for controller issues

Try these separately first, but if they don't work, then you may need to try a combination of them.

• Use Steam's controller settings, enable Steam Inputs from the game properties, and check controller configuration support through Steam's Big Picture mode
• Toggle "Controller Native Input" in the game, found at Main Menu ᐅ Options ᐅ Controller. Restart your game after changing it.
• Unplug your controller before launching the game, then plug it back in on the title screen.
• If you have a steeringwheel/joystick/any other form of controller, unplug it
• If none of the above work, it is recommended to check out the ControllerFixes mod. See here how to start modding

Visual examples for Steam settings: https://imgur.com/a/MKQIYHO

What is left for 112%

For PC users:
The easiest and most convenient way to check what you are still missing is using this site:
https://reznormichael.github.io/hollow-knight-completion-check/
The save file location for non-windows/gamepass users can be found here

For Console users
There are 2 options for you to use.

• https://hollowknightchecklist.com/ is a site that allows you to check all the things you think you have done.
• Read the following list and mentally make a note on if you have done it already or not
  • Movement Abilities: Mothwing Cloak, Mantis Claw, Crystal Heart, Monarch Wings, Isma's Tear, King's Brand, Shade Cloak [2% each, total 14%]
  • Charms: All [1% each, total 40%]
  • Bosses: Gruz Mother, False Knight, Brooding Mawlek, Hornet Protector, Traitor Lord, Uumuu, Mantis Lords, Nosk, Broken Vessel, Hive Knight, Hornet Sentinel, Collector, Soul Master, Watcher Knights, Dung Defender, all Warrior Dreams [1% each, total 22%]
  • Godhome: Pantheons 1-4 + Godtuner [1% each, total 5%.]
  • Colosseum: Trials 1-3 [1% each, total 3%]
  • Dreamers: Monomon, Lurien, Herrah [1% each, total 3%]
  • Dream Nail: Dream Nail, Awoken Dream Nail (1800 Essence), Ascension (2400 Essence) [1% each, total 3%]
  • Masks: 16 Mask Shards [4 Mask Shards = 1%, total 4%]
  • Soul Vessels: 9 Vessel Fragments [3 Vessel Fragments = 1%, total 3%]
  • Nail Arts: Great Slash, Dash Slash, Cyclone Slash [1% each, total 3%]
  • Nail Upgrades: All [1% each, total 4%]
  • Spells: All including upgrades [1% each, total 6%]
  • The Grimm Troupe: Troupe Master Grimm, Nightmare King Grimm or Banishment [1% each, total 2%]
  • Grand Total: 112%

How to revert to vanilla/How to uninstall the mod installer

How to revert to vanilla
There are various ways to revert your game to vanilla

• The first option is to use the option provided by your mod installer. This can either be using the 'launch vanilla game' button in Lumafly or the 'disable API' button in Scarab.
  • Note: The 'disable API' button in scarab does not work for some people. If this is the case for you, you need to either switch to Lumafly or use the next option
• The second option is to verify the files through the store where you have bought the game. If this is not possible for where you have bought the game then you must use the first option.

How to uninstall the modinstaller
Since the modinstaller isn't a program that actually installs itself, uninstalling the mod installer is as simple as deleting either the .exe or the folder which contains the files for Scarab, depending on the mod installer you are using.
Note: Uninstalling the mod installer doesn't uninstall the mods you have installed when deleting the mod installer. To return to a vanilla game, see the section above.

How to fix healing (after using Hollow Point)

Using MoreSaves mod:

• In the Hollow Knight main menu, go to Options > Mods > MoreSaves > Save Edit
• In the search bar, type "focusMP_amount"
• Set the value to 33
• Click "Apply"

Using QoL (Quality of Life) mod:

• Go to your save files (type ?tag saves in chat if you don't know where that is)
• Locate user#.json (with # being the save slot number)
• CTRL+F "focusMP_amount"
• Set the value to 33

Without using another mod:

• Go to https://bloodorca.github.io/hollow/
• Go to your save files (type ?tag saves in chat if you don't know where that is)
• Locate user#.dat (with # being the save slot number)
• Upload that file to the website
• CTRL+F "focusMP_amount"
• Set the value to 33
• "Download encrypted (PC)"
• Rename it to the original filename (it will download as user1.dat, rename if you edited a different save slot.)
• Move the file back to the save file folder (and overwrite the old one)."

Fixing Common issues on Linux/SteamDeck

• Controller Doesn't Work / [Some Mod] isn't working!
  • By default (especially on SteamDeck) Steam may be using Proton and installed the Windows version of the game. This can have problems on it's own, but also causes issues because the Mod Installers will install the Linux version of the ModdingAPI, which isn't fully compatible with the Windows version.
  • How to Fix: Go to the HK Library page, select Properties -> Compatibility, check "Force the use of a specific steam play compatibility tool", and select "Steam Linux Runtime" (Note: not the sniper or soldier versions)
    • After this you'll need to select "Change Paths" in your Mod Installer and change it to the new install path (which you can get by using the "Browse Local Files" option in Steam, then reinstall your mods.
• Game crashes when when starting / while playing!
  • Add -force-opengl to the steam launch arguments. Note: This can be a problem even if playing Vanilla, but it is commonly seen when Modding because of the greater resources used.
• Mods not saving correctly / loading correctly
  • This can happen if the Permissions in your Hollow Knight install get messed up. You can fix this by making sure that the current user (or all users) have permissions for the Hollow Knight install directory and subdirectory & files. If you are unfamiliar with how to do this, then you can open terminal, use CD "~/.local/share/Steam/steamapps/common/" to get to the Steam Apps directory, and then use sudo chmod -R 777 "Hollow Knight" to update the permissions for the install so that all users can access it.

My nail does not behave normally/my game randomly speeds up or slows down.

My nail does not behave normally
Symptoms of this are:

• You can't interact with objects anymore, such as breaking doors with your nail
• You can't damage enemies
• You do more damage than usual

This is almost always caused by debug. Specifically, the keybind part of debug.

What happens is that increasing/decreasing nail damage is bound to a key which you press without knowing it's a keybind. This results in the nail damage altering without you knowing it. To solve it, open your save with debug installed. Navigate through the binds menu until you find the bind for increasing/decreasing nail damage. From there reset the damage back to normal (21 for pure nail). You can also delete a bind by pressing the option to set a new bind and then pressing backspace.

Note: Deleting debug does not revert the changes made by it. If you have deleted debug but have had it installed prior, you will need to reinstall it to solve the problem.

My game randomly speeds up/slows down
This issue is most likely also caused by debug. What happen is that increasing/decreasing timescale is bound to a key which you press without knowing it's a keybind. This results in the timescale altering without you knowing it's cause. To solve it, open your save with debug installed. Navigate through the binds menu until you find the bind for increasing/decreasing timescale. From there reset timescale to normal (1.0x) You can delete the bind by pressing the option to set a new bind and then pressing backspace.

Creating Custom Knight skins

How to create skins:
The best resource for in depth learning how to create skins is the guide created by HBKit https://docs.google.com/document/d/1Zjc8Nh_6u4zBtJ22r_8YunRgP24_1UQBPabFiG8PZ5A/edit?usp=sharing

How to commission skins:
If you are not willing or able to create a skin for various reasons but do want to have one created after your image, you can commission a skin. There is a thread in the hollow knight modding discord for artists that accept commissions. You may also check the recruiting channels and ask there.
Server link: https://discord.com/invite/A3tnUzw8hB
Thread link: https://discord.com/channels/879125729936298015/880165008930140250/1206658814871339048

Note: Because skin creation is such a big project with the knight sprite sheet being over 500 sprites, costs for a commission can easily be $100+

Using Custom Knight

This is the mod for reskinning The Knight and other things in the game

Resources

• Comprehensive Skin Doc by ColetteMSLP
  • Public Skins not yet on the Doc
    • Note: This links to the Hollow Knight Discord. You need to join the server to be able to see the message
• Skin Repository by Tadeas Jun
• Video Tutorial by fireb0rn
  • Note: This video assumes you have already installed a mod installer. See this comment if you haven't yet
• Guide to Creating a Skin by HBKit

Common issues

• If the link from the 'Comprehensive Skin Doc' to a discord doesn't work, make sure you have actually joined the server it's linking to. This can be either the Hollow Knight Discord of the Hollow Knight Modding Discord. After joining the server you may need to press the link twice to actually get to the message
• If your skin isn't working, go to Options > Mods > Custom Knight > Advanced > Fix My Skins. After this, you may need to use the Reload option in the previous menu.
• If The Skin List is covering up other mods, you can toggle it with Del. You can edit this Keybind in the Custom Knight menu.
• Make sure that you apply skins from the Pause Menu when you have your save file loaded. If you apply a skin from the Main Menu, it will only be used for new files.
• If you have White Boxes , restart your game. You may also need to try applying the skin in a small/empty room, like a stag station.

Troubleshooting

If your problem isn't fixed from the Common Issues section above, then please create a post with the modding flair that includes the following
You must post a screenshot that shows:

• Where you installed the skin
• With the directory bar visible
• With the skin images themselves visible
• Example screenshots (yours should look like this)

How to use Hollow Knight Multiplayer (HKMP)

• Easy Setup Guide (Important to read!)
• Video Guide
• How to use Skins | Example Image
• HKMP Discord (Dedicated space for finding people to play HKMP with)

How it works
HKMP puts a copy of each player into each other players world.
Enemies have separate health and will usually be in different places; Items/abilities must be collected separately; and Breakable objects must be broken by each player. Player attacks happen in each player's world, damaging any enemies/players it comes in contact with. A player is only hurt by the enemies in their own world. This page explains how you can use other mods and addons to synchronize some aspects, and improve your experience.

Public servers

General use (PVP enabled)
 IP:    hkmp.org
 PORT:  26950
Requires HkmpPouch

Co-op (PVP disabled)
 IP:    hkmp.org
 PORT:  26951
Requires HkmpPouch

Infection Tag
 IP:    tag.hkmp.org
 PORT:  26950
Requires HKMP Tag and at least three players

Important note: "Invalid Addons" means that you have extra HKMP addons that can't be used on the server. Pouch servers can have any Addons that say that they require Pouch, but you otherwise cannot use others!

Troubleshooting
If you run into any sorts of problems, the first thing you should do is check the guide linked at the start of the message, almost all problems are described there.
Note: It's not described in the guide, but if one of you have backdash/sitbutton you need to disable it.

If after checking the guide and having read the note the problem still persists, make a support post in the Hollow Knight Modding Discord. When making that post, be sure to include the modlog of both you and the person you are trying to play with. How to get a modlog is described here. It's the path for save files

How to use/install the Randomizer Mod

Note: This assumes you have already succesfully installed a mod installer. If you haven't, see this post

Randomizer allows you to randomize basically everything. The base version is called Randomizer 4, which can be found on all current patch mod installers. Besides the base version, there are quite a few add-ons, which allow you to randomizer more things that the base version does not allow you yet. The add-ons can also be found on the mod installers. Lumafly allows to search for mods with integration with randomizer 4

Setting up randomizer

• Video tutorial by Fireb0rn
• Text tutorial by homothety

Common questions
My randomizer doesn't look like how it looks in X youtubers video

• That is an older version of randomizer. While randomizer 4 looks different, it has the same options as the old one and more!

Randomization terminated due to an error

• Usually this is caused by outdated mods, make sure all mods are up to date (Lumafly has an update all button)
• If all mods are updated and it still doesn't work then sometimes it's the case that not every rando connection got updated to work with the way logic is currently defined, so even when being properly updated on the mod installer, some will still not work. If you encounter this, you should join the Hollow Knight Modding discord and make a support post there

Silksong Save Files

What do save files looks like?

• Each Silksong save file is a user#.dat where # is the save slot for the file
• You can rename user3.dat to user1.dat to set it to your first save slot ### Reverting Backups
• Automatic backups are called user#.dat.bak#, where the first # is the save slot, and the second # is the backup number. You will usually have your last three backups
• You restore a backup by deleting the main file, and then removing the .bak# part of the backup version ### Where are the files?
• On windows, the default path for Save Files is:
  • %appdata%\..\LocalLow\Team Cherry\Hollow Knight Silksong\
  • You should just copy and paste that path directly into the File Explorer path bar at the top.
• For other operating systems, see this post ### I need a specific type of save file
• Various save files can be found in the "Saves" section of this page: https://www.speedrun.com/silksong/resources
  • If the file you download is a .rar or other archived format, then you will need to extract it with something like 7zip ### Editing save files
• There are 2 websites to edit save files on
  • Has a better UI: https://just-addwater.github.io/silksong-saveeditor/
  • Barebone JSON editor: https://bloodorca.github.io/hollow/ ### Auto Saves
• Along with user#.dat, Silksong also introduces Restore_Points# for each save file as a way of going back to key points in your save.
• These can be copied & backed up the same way a user#.dat file would be (see above)
• Using them requires the number used for Restore_Points# to have a user#.dat file. Aftwerwards, open the game and hit the 🔄 button below the save and select the point you want to go back to.
  • WARNING: Reverting to a previous auto save will overwrite your current save file.
  • Example:

Hollow Knight crashes upon opening after installing a mod

This error can happen for a number of reasons. Read through all of the common reasons below to see which might apply to you.

• "Hollow Knight isn't responding"
  • This isn't actually a crash, you just need to wait and let the game load. This is common with mods that have a lot of Pre-loading (like Pale Court, Enemy Randomizer, WeaverCore, and mods that load a lot of skins/audio).
• Your game patch doesn't match the installer you used
  • Modding is currently done on the latest patch and this is what all current installers require. If you're on Steam, then make sure you are not accidentally using a Beta patch (Beta should be set to "None")
  • "Mod Installer" ( Zote) and Mod Installer 2 are made for version 1.4.3.2, and should no longer be used. If you watched or read something that said to use these, then it is outdated information.
  • There aren't installers for other patches, like 1.2.2.1. If you are looking for speedrunning mod help, then I would recommed to either join the Hollow Knight Modding Discord or the Hollow Knight Speedrunning Server and ask for support on how to mod 1.2.2.1 there.
• Something didn't install correctly
  • Right-Click the installer, and select "Run as Administrator"
  • Ensure that the installer is not still in a .zip file (if you downloaded it as a .zip, then you'll need to Extract the files from it)
  • Make sure that you moved the Installer file(s) out of your Downloads folder
• Your game is cracked / pirated
  • Piracy is not supported in most communities for games, as is the case here. Mods are not considered compatible with pirated copies, and you will not get troubleshooting support.
  • Modding is only supported on the official computer versions from Steam, GoG, or Xbox Games.
  • If you do not have a supported version, then please get one and then you will get support with modding. Asking for assistance with unsupported versions may result in moderation action.
  • Hollow Knight goes on sale regularly, and you can keep an eye on this website for when it is: https://isthereanydeal.com/game/hollowknight/

How to start modding

Video guide
Fireb0rn's tutorial video! (Note: as this video is a bit older, fireb0rn shows Scarab. However the community recommended installer is currently Lumafly, which is a more updated version of Scarab.)

Text guide

1. Download Lumafly
2. Move the file out of your downloads folder (moving it to desktop is recommended).
3. Open Lumafly (On Windows make sure to Right-Click it and select "Run as Administrator")
4. If it automatically detects the game path, skip the rest of this step
   1. Navigate towards the location of hollow_knight.exe See here for the location of the Game Files
   2. Select the .exe file and accept.
   3. If this process did not work, you should join the Hollow Knight Modding discord and make a support ticket there including screenshots of the path you are selecting.
5. Go to the mod tab and from there you can install whatever mods you want. Make sure to read the ReadMe file so you know what mod you are downloading and how it functions before installing.
6. Press the 'launch modded game' button
7. Have patience while the game boots. If Windows prompts that Hollow Knight is not Responding, don't close it, simply wait a bit longer (some larger mods can take longer to load than Windows likes).
8. If the game crashes (So not what is described in step 7), see this comment
9. Enjoy your modded game!

How to install mods manually on 1.5

FaQ about manually installing

• Why manually install mods?
  • Some mods are not on the mod installers for various reasons.
• Where can I find mods that need to be installed manually?
  • Docs sheet for all mods not on the installer
  • Note: Make sure to look at the game version of the mod before installing. You can only use mods created for said version. If you want to use a mod created for 1.4.3.2 you will need to downpatch. Further instructions about 1.4.3.2 modding can be found here (Links to the Hollow Knight Discord, which you need to join to open said link)

For all current patch mod installers

• Download the mod (it'll be either a dll file or a .zip that you need to Extract. Extraction tutorial.
• Go to your /Mods folder and create a folder with the name of the mod.
  • Note: You can use your installer to Open the Mods Folder
• Move the mod file(s) into the newly created folder.
• Launch the game.

For Lumafly

• Download the mod (it'll be either a dll file or a .zip that you need to Extract. Extraction tutorial.
• Open Lumafly
• Click on the 'Manually Install' button on the left, while in the mods tab
• Navigate towards the dll
• Accept

Example of an installed mod: https://imgur.com/a/edREcUB

Modding Silksong

Silksong Modding is supported using Thunderstore!

Note: While mods from other places exist, we do not support them, and you may have issues if you use mods from multiple places

At this time we recommend using r2modman or gale to install mods. We are aware these currently don't have MacOS support, and for now MacOS users will need to see this comment for installation information. When community installers exist that have proper support for MacOS, we'll be recommending those over the generic Thunderstore installers.

Various things to know about Modding Silksong on MacOS

• Savefile Location: ~/Library/Application Support/unity.Team-Cherry.Silksong/

Instructions for Modding Silksong on MacOS

1. Manually Download the Silksong BepinEx and unzip it by double clicking on it
2. Go to the BepInEx-BepInExPack_Silksong folder, and open the BepInExPack folder
3. Select and copy everything inside the BepInExPack folder (command + a then command + c)
4. Locate your Silksong install: In Steam, right click Silksong, select Properties, go to Installed files and click Browse
5. Paste what you copied earlier in this folder (command + v)
6. If your finder doesn’t show the file path at the bottom, click View in the menu bar and select Show Path Bar
7. In the path bar at the bottom of the window, right click the Hollow Knight Silksong folder and select Open in Terminal
8. Copy and paste arch -x86_64 sh run_bepinex.sh and press enter
9. You should see a warning about Apple not being able to verify that libdoorstop.dylib is free of malware. Click Done once and temporarily ignore the next popup
10. Go to system settings, then click Privacy and Security in the sidebar. Scroll down to security, libdoorstop.dylib should appear there, click Open
11. Go back to the pop up, click Done again, and the next one should have an Open Anyway button. Click it (you may need to enter your password there) then click OK
12. Silksong should now open. On Steam, make sure to keep your Steam client open, otherwise your saves may not be recognized properly. To open Silksong with BepInEx again later, redo steps 4, 7 and 8, or follow the bonus steps:

Bonus: make Steam automatically open Silksong with BepInEx:

• In Steam, right click Silksong, select Properties and go to General
• Copy and paste this into the Launch Options field: "/Users/username/Library/Application Support/Steam/steamapps/common/Hollow Knight Silksong/run_bepinex.sh" %command%
• In what you just pasted, replace username by your MacOS username
• You should now be able to launch Silksong with BepInEx with Steam’s Play button

Important paths

Notes: These are for Steam's default locations. For GoG, locate your 'hollow_knight.exe' folder and follow from there. The Saves folder also contains Global Settings and your ModLog.txt. Some mod installers such as Lumafly can open these folders for you.

Windows except XBox Games

• Save Files: %APPDATA%\..\LocalLow\Team Cherry\Hollow Knight\
• Game Files: C:\Program Files (x86)\Steam\steamapps\common\Hollow Knight\
• Mod Files: C:\Program Files (x86)\Steam\steamapps\common\Hollow Knight\hollow_knight_Data\Managed\Mods\
• To find Saves folder:
  1. Press [WindowsKey] + [R]
  2. Copy & Paste the Save Files path
  3. Press [Enter]

XBox Games

• Save Files: %AppData%\..\Local\Packages\
  • Find a folder in here with Team Cherry in the name
• Game Files: C:\XboxGames\Hollow Knight\Content\
• Mod Files: C:\XboxGames\Hollow Knight\Content\hollow_knight_Data\Managed\Mods\
• Note: Microsoft manages this install weirdly and syncs its files to inaccessible folders, so changes may need a few minutes to take effect and bugs with (un)installing mods can occur.

Mac OS

• Save Files: ~/Library/Application Support/unity.Team Cherry.Hollow Knight/
• Game Files: ~/Library/Application Support/Steam/steamapps/common/Hollow Knight/hollow_knight.app/
• Mod Files: Right-click hollow_knight.app, select "show contents", then go to: contents ᐅ resources ᐅ data ᐅ managed ᐅ mods
• To find Saves folder:

1. In the Finder, click "Go" in the top menu and select "Go to folder"
2. Copy and paste the Save Files path and press enter.

Linux

• Save Files: ~/.config/unity3d/Team Cherry/Hollow Knight/
• Game Files: ~/.local/share/Steam/steamapps/common/Hollow Knight/
• Mod Files: ~/.local/share/Steam/steamapps/common/Hollow Knight/hollow_knight_Data/Managed/Mods/

Proton File Paths

• Save files at ~/.steam/steam/steamapps/compatdata/367520/pfx/drive_c/users/steamuser/AppData/LocalLow/Team Cherry/Hollow Knight
• Game files at ~/.local/share/Steam/steamapps/common/Hollow Knight

Transferring Gamepass files to Steam (Silksong)

Finding the savefile

Go to the following location: C:\Users\YOUR_USERNAME\AppData\Local\Packages\TeamCherry.HollowKnightSilksong_RANDOM_NUMBERS\SystemAppData\wgs\000901F0772A31B3_000000000000000000000000636F5860\RANDOM_NUMBERS

In the RANDOM_NUMBERS, there'll be a couple of other random-letter-folders; you usually would want the most recently edited file, but it can vary which file it is. (it'll be in there somewhere though).

Transfering the file

First boot up Silksong on Steam once, where you start a savefile until you have bound the nail (very start of the game).

Once you find the Xbox Game Pass file, copy it and paste it into the Steam save file location: C:\Users\YOUR_USERNAME\AppData\LocalLow\Team Cherry\Hollow Knight Silksong\RANDOM_NUMBERS. Once you pasted it there, rename it to userX.dat, where X corrosponds to the save slot. You may want to delete the already existing userX.dat you just created.