Unverum Mods on the Steam Deck

Guide to mod several Unreal Engine 4 anime games using the Unverum Mod Manager on SteamOS.

Protontricks setup

You will need Protontricks, if you already have that installed you can skip this entire section after reading this.

Open up Discover and search for Protontricks then install it.

After that, search for Flatseal then install and open it.

Click on Protontricks on the left, scroll down to Filesystem then click All user files and give permission to /run/media under Other files.
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What is Flatseal and what exactly am I giving access to?
Flatseal allows you to review and modify permissions from your Flatpak applications, we are giving Protontricks access to any external drive (like a MicroSD card) you may have in case the game is installed there.

Unverum Setup

Download the Unverum mod manager from GameBanana[gamebanana.com] or Github[github.com] and extract it wherever you want.
Within the folder you just extracted, Right-click on Unverum.exe and click Add to Steam.
Open up Steam and find Unverum.exe in your Steam Library. Click on the Gear Icon and then Properties.

In Properties, click on Compatability, check the box, and set it to Proton 8.0-4 (or your preferred Proton).

Unverum Prerequisites

Now click Play and you should get an error telling you to install .NET Desktop Runtime.

Click Yes and it should open this page[dotnet.microsoft.com]. Close Unverum if it didn't already close itself.

Navigate to the file you just downloaded, Right Click on it and click Open with Protontricks Launcher

In the menu that pops up, scroll down until you find Unverum.exe and click on it, then click OK.

A new box will open and you'll simply click Install and Close once it's finished.

Now open Protontricks
Find & click Unverum in the list, then click OK
(It should be a Non-Steam Shortcut)

A Winetricks window will eventually pop up, click Select the default wineprefix, then OK

In the new window click Run winecfg, then OK

In the Wine configuration window, click the Drives tab, then check Show dot files (towards the bottom left)

Click Apply then OK, and close any other Winetricks windows.

Game Setup

Although this guide is for Guilty Gear Strive, the process is the same for the majority of games supported by Unverum such as Dragon Ball Fighterz, Granblue Fantasy Versus, or My Hero One's Justice 2.

Open up Unverum in your Steam Library and click Play. Once it opens click on Setup towards the top and point it towards your game's exe.

You're finished and everything should work.

Manually adding mods to Unverum

Downloading mods under Unverum's Browse Mods works but can be jank, if you prefer you can install them manually.

Download your mod from Gamebanana or wherever and open your Unverum folder. Within the Unverum folder should be a folder named Mods, and within that folder should be a list of games you have set up.

In the folder of your game, make a new folder for your mod and place it in there.

The folder should appear within Unverum and when toggled on should work if it was set up right.

Costume Patcher Fix

The Costume Patchers need some extra steps in order to work.

Open up Protontricks and choose the game you're doing this fix for

Click Select the default wineprefix then OK

Click Install a Windows DLL or component then OK

Scroll down to dsound and check the box next to it, then click OK.

Wait for the Protontricks window to pop back up then you can close all windows.

Any Costume Patch mods should start appearing in-game after doing this.

[Captain Diagram]

Glad to help!

[TigerDrop0]

Can confirm as of today, April 17, that did indeed fixed it. Thank you SOO much you mad genious!

[TigerDrop0]

oh, sweet, thats awesome dude, thanks

[Captain Diagram]

I found a fix, installing dsound.dll through Protontricks fixed all Costume mods for me. I'll update the guide later with this information when I get the chance. I tested the fix by booting the game on Steam, launching through Unverum may or may not still crash but Steam should boot with working L1/LB Costumes as long as dsound.dll is installed.

[TigerDrop0]

It still crashes when launching from unverum even after putting that command you suggested but some of the mods do work if I launch through the game instead of the mod launcher. The ones that do not work are the ones that require you to press the L1/LB button when selecting characters to switch appearances. Those kinds of mods need to launch through unverum but it crashes on steam via launch...
Do you have any mods like that changes appearences by pressing the L1/LB?
If not, here's an example and try:
https://gamebanana.com/mods/377325

[Captain Diagram]

I'm assuming you are trying to mod Fighterz, if you add "steam://launch/678950/option1" (Keep the quotes) to Fighterz's Steam Launch Options does it fix it?

[TigerDrop0]

I followed the steps but everytime i hit launch, the game will be starting and then crash. I thought it was because I originally had it on the sd card so I moved it to the internal drive but still no luck. Is it due to the fact that the game updated with the rollback netcode?

[Captain Diagram]

Yeah, it's a lot to get used to but keep at it! I originally failed to get Unverum working when I first got a Steam Deck. I thought it was impossible and only managed to find a method after revisiting the topic months later.

[judgement guy 😱]

Oh god man, thx u so much, I bought a Steam Deck 2 months ago and tutorials like yours solve a lot of problems and help me understand how Wine works

[Captain Diagram]

Glad to help!