How to Use Custom DLC (CDLC) on Mac (2023 Update)

 

The following instructions are for Rocksmith 2014 Remastered, with the latest update installed.  These instructions may not work for older versions or pirated versions of the game, and I will provide no support for pirated versions.  Please buy the game and support the developer.  Without the game, we would have nothing to play customs with anyway.

Download the patch here : https://github.com/aik002/RSBypass/releases/download/1.8pre2/RSBypass.zip

Video instruction :

To convert PC customs to Mac version :

https://github.com/glebb/rocksmithconvert/releases/download/2.2.0/RSConvert_GUI-2.2.zip

 

Here are all the steps (read them carefully) :

• Your user account needs to be an Administrator account.
• Download the Rocksmith Patch:  https://github.com/aik002/RSBypass/releases/download/1.8pre2/RSBypass.zip
• Unzip the patch file and double-click on "RUN_PATCH_RS.command" to run the patch.  This will patch the Rocksmith 2014 app file to allow cDLC's to work.   **If you encounter a permissions error, see the note below**
• Download the customs you want. Make sure they end in "_m.psarc". If they end in "_p.psarc" they are PC only versions and will need to be converted with the Toolkit. I'll put instructions for that down below.
• Place the customs in the dlc folder. The location is: ~/Library/Application Support/Steam/SteamApps/common/Rocksmith2014  
  • It is a hidden folder, so the easiest way to find it is to open Finder, and using the "Go" menu, select "Go To Folder" and paste the location in there. You can then drag the dlc folder to your sidebar to create a permanent link.
  • You can also find the folder by opening Steam and going to your games library and right-clicking on Rocksmith 2014, and choosing "Properties".  Select the "Local Files" tab and click on "Browse Local Files"
• Launch Rocksmith 2014 by either opening Steam and running it from "Library", or launch it from the Mac Launchpad by clicking on "Rocksmith 2014"
• Say goodbye to your family, friends, and free time. You won't be seeing any of them for a while.

 

**If you encounter a permissions error while running the patch:

1. Right-click on the patch and select "Get Info"
2. Under "Sharing & Permissions", make sure that all users listed have "Read & Write" permissions.
3. If they do not, click the small lock icon in the bottom right corner to allow the permissions to be changed, and enter your Admin password.  Then select each user that needs to be changed and alter the permissions.
4. Repeat for the other two files needed for the patch ("insert_dylib" and "libRYBypass.dylib")

 

Updated 2023/11/01, confirmed to work until Sonoma OS.

1 minute ago, Breno Velasco said:

if I'll lose the DLC song I already own by changing the appID

No. It just "borrows" the Song ID to make the cDLC play. (Has to be the Song/app ID of a legally owned / downloaded DLC). All the cDLC and that original DLC will share that ID.

I am not sure if this is the current version, It would take me longer to look, but I believe it is:

https://github.com/glebb/rocksmithconvert/releases/download/2.2.0/RSConvert_GUI-2.2.zip

18 minutes ago, Sniper Reload3d said:

No. It just "borrows" the Song ID to make the cDLC play. (Has to be the Song/app ID of a legally owned / downloaded DLC). All the cDLC and that original DLC will share that ID.

I am not sure if this is the current version, It would take me longer to look, but I believe it is:

https://github.com/glebb/rocksmithconvert/releases/download/2.2.0/RSConvert_GUI-2.2.zip

Got it. The "Change AppID" option defaults to 248750, which I imagine is the AppID for CherubRock. Is that it?
I can't buy this DLC from Steam anymore. I do have some DLCs I bought but how can I check their App ID? Thanks.

48 minutes ago, Breno Velasco said:

how can I check their App ID

There are a couple different ways. One is there is a list floating around that has ALL Steam app id's.

My opinion, and solely my opinion, Find the oDLC that you have or are going to buy. IF it is one that you are going to purchase, the app id / song id is the end of the url.

The other is to use a search engine, and do a search for the no longer listed song that you have, pull it up in the browser, and again it will be in the the url.

i.e. https://store.steampowered.com/app/369783/Rocksmith_2014__Queen__Another_One_Bites_the_Dust/

369783 is the song ID for Queen,  Another One Bites the Dust.

My personal experience is that DuckDuckGo works better for pulling delisted songs than Google. Your experience may differ.

Edit:

https://steamdb.info/apps/

but Man, is it a long list to sort through.

That's super helpful. I used the appID for I Was Made For Lovin' You, by Kiss, and it worked. Thanks for the help!

You are welcome, glad you finally got it to work.

Hola! I was able to get it working, I didn't have the song ID from a song I owned as the song ID for my files when converting the song to Mac.

I updated to Sonoma this weekend and now RS2014 is no longer working and is crashing on startup. I noticed that the instructions say the patch works up to Sonoma. Did I break my ability to use CDLC?

Edit:

I've deleted Steam and reinstalled

I've deleted RS and reinstalled

If I run before installing the patch it works.

I've downloaded the latest patch, and as soon as I install the patch, it bounces in the taskbar for a few seconds and then closes without doing anything.

31 minutes ago, Mordred99 said:

I updated to Sonoma this weekend and now RS2014 is no longer working and is crashing on startup. I noticed that the instructions say the patch works up to Sonoma. Did I break my ability to use CDLC?

you'd have to run through the setup process again.  changing os breaks the setup,  but it will work again if you follow the steps correctly again.

42 minutes ago, Hikikomori said:

you'd have to run through the setup process again.  changing os breaks the setup,  but it will work again if you follow the steps correctly again.

I believe I've done that all correctly, and it's still not working. I downloaded the latest patch, deleted my copy of RS and reinstalled through Steam, applied the patch and it still won't start up.

I'm on Sonoma 14.5 if that matters.

17 hours ago, Mordred99 said:

I believe I've done that all correctly, and it's still not working. I downloaded the latest patch, deleted my copy of RS and reinstalled through Steam, applied the patch and it still won't start up.

I'm on Sonoma 14.5 if that matters.

come visit the #mac-os channel on the Customsforge Discord, they may will be able to troubleshoot there.

5 hours ago, Hikikomori said:

come visit the #mac-os channel on the Customsforge Discord, they may will be able to troubleshoot there.

Figured out what I was doing wrong. The "latest release" on github is 1.7. The required 1.8.2 release is "pre-release" so it only shows up if you click on the Releases label.

On 1/23/2022 at 6:16 AM, insilenzio said:

Dear all,

may anyone could help me?
I'm running Mac OS X Catalina, I've followed instruction as per Wepeel posted August 17, 2014, but I've encountered many issues.

1. Legally downloaded Rocksmith and Cherub Rock song;
2. Set patch files to read and write permissions for all users;
3. Allowed their execution via System settings -> Security & privacy

Then:

1. Run RUN_PATCH_RS.command and I get screenshot 1.png.
   => nothing happened. When I run Rocksmith, I can't see any cdlc.
2. Run RUN_PATCH_RS.command once again. Yes, for all "continue anyway". A disk low warning appears, but I have more then 800GB free.
   => something happened. When I run Rocksmith it fails crashing with the message in 3.png.

I got this issues after Mac OS X reinstallation, before that I was able to play it without any problems.
I'm wondering if I am missing something or I got wrong versions (or older version) of patcher.

Thank you for your support and sorry for my English 😉
Dave.

same happening to me... someone to help??

 

I have my games folder on another disk that is not the default on Mac, I just had to change the folder path in the RUN_PATCH_RS.command file and everything worked fine

The Rocksmith patch download link doesn't work

 

Is there a mirror for the Rocksmith patch download please?

If you shorten the github URL you'll see the releases page with different versions of the patch:

https://github.com/aik002/RSBypass/releases

This is an open warning for Mac users, anyone coming to this thread looking for help after updating their OS to 15.4.

As of April, updating Mac OS to 15.4 breaks Rocksmith 2014, and the two are not currently compatable. Rocksmith 2014 will not run at all. There is no fix as of this post; other than using a previous OS or Windows.

15.3.2 is the last working version of the OS that RS 2014 will work with.

Edit: Tahoe 26 Released Sept 15 supposedly is now a working Mac / Rocksmith update according to other users.

On 5/19/2025 at 11:57 PM, Sniper Reload3d said:

Edit: Tahoe 26 Released Sept 15 supposedly is now a working Mac / Rocksmith update according to other users.

Tohoe is working for me.

On 9/16/2025 at 9:10 PM, Declis said:

Tohoe is working for me.

Yep, working for me too - I didn't need to re-load the patch. Thanks everybody.