how to install fallout new vegas on steam deck and install mods

fallout new vegas steam deck mod guide.md

full tutorial for install Fallout New Vegas with Mods on steam deck enjoy

How to install mods on fallout new vegas for Steam Deck Requisites:

• Windows PC
• SteamDeck

1. Install fallout new vegas with all DLCs on the steam deck to the internal SSD. Run Fallout New Vegas once so it can create all the files it needs

2. Go to SteamDeck Desktop, Open konsole, ( from here https://www.reddit.com/r/SteamDeck/comments/t8al0i/install_arch_packages_on_your_steam_deck/)

   I. If you have not already, use passwd to create a password for the deck user. II. Disable read-only mode: sudo steamos-readonly disable III. Initialize the pacman keyring: sudo pacman-key --init IV. Populate the pacman keyring with the default Arch Linux keys: sudo pacman-key --populate archlinux V. instal 7z: sudo pacman -S p7zip VI. now run sudo steamos-readonly enable

3. Go to SteamDeck Desktop, Open Discover, install protontricks

4. Open Konsole, run this to install the protontricks alias echo "alias protontricks='flatpak run com.github.Matoking.protontricks'" >> ~/.bashrc

4b. Now we need to do two additional steps before we can install mod organiser 2 - In Konsole run mkdir /home/deck/.local/share/applications - and then run flatpak override --user --filesystem=/run/media/mmcblk0p1 com.github.Matoking.protontricks

5. Now install mod organiser 2 linux, follow the steps in the installation steps guide https://github.com/rockerbacon/modorganizer2-linux-installer#installation-steps This step is not great, sometimes it fails and you just have to run it again, the download part for the dotnet package is slow like 12 mins. If MO2 fails for any reason, you will have to start it again and it will redownload everything again.... ikr so slow

6. Now when you run FallOut New Vegas from Steam it will run MO2 (You can download the mods and manually install them if you want to do it that way)

Now we will copy over mods from the PC to our steam deck

7. On your Windows PC install Mod Organiser 2 and wabbajack. I use Wabbajack to install the fallout viva new vegas mod on PC. follow the wabbajack guide for that

8. Once you have your mods in wabbajack, copy over the install directory to a USB stick

Now we go back to the steam deck

9. Connect the USB Stick to steam deck, open up install folder > Game Folder Files, copy these files into your Steam Deck Fallout New Vegas folder (usually found in /home/deck/.local/share/Steam/steamapps/common/Fallout New Vegas), overwrite when it asks

10. Now copy the contents of the install folder into the MO2 folder on steam deck, that will be in /home/deck/.config/modorganiser2/instances/newvegas/modorganiser2/ and overwrite when it asks

11. Now when you run new vegas your mod organiser will have all the mods you copies from your PC, you can only play new vegas in desktop mode from now on, As mod organiser 2 linux overwrites the falloutnew vegas exe file

12. Now the final step, we need to run the 4GB patcher, next go her https://www.nexusmods.com/newvegas/mods/62552?tab=files dowwnload the FNV4GB for Linux version, download this, extract it, copy it to your fallout new vegas steam folder, and then run it, when the pop up comes up click execute, wait a few minutes, it wont do anything but it just patches the local game files. it wont say anything when its done either

This is immensely helpful, thanks for the write up!! I was about to manually install all the viva new vegas mods

You can install protontricks by running flatpak run com.github.Matoking.protontricks.

The whole step with steamos-readonly is not necessary, as p7zip is already installed by default. Also keep in mind whenever you do that the changes get lost after firmware update.

the download part for the dotnet package is slow like 12 mins
Worked very fast for me, but I had to manually create a symlink between the internal storage steamapps/common/fnv directory and one in the external storage. Looks like this linux installer is tricky.

Now we will copy over mods from the PC to our steam deck

Connect the USB Stick to steam deck, open up install folder > Game Folder Files, copy these files into your Steam Deck Fallout New Vegas folder

But why? I've installed a couple of mods directly on deck without needing any "Windows PC". Just get the mod files there somehow (via USB stick or just download it in the deck browser) and import into your MO2 install.

when the pop up comes up click execute, wait a few minutes

No need to wait few minutes, the script works instantly.