Naruto Storm Evolution runs on the Steam Deck by launching the mod installer and the resulting modded executable through Steam using Proton Experimental. Because Storm Evolution is an unofficial community mod project built on top of Naruto Shippuden: Ultimate Ninja Storm 4 rather than a standalone Steam release, getting it working on Valve's handheld requires downloading the project launcher into your base game directory and adding it as a Non-Steam game.
Following the player-tested setup method ensures you can run the modded roster and updated 60 FPS mechanics directly in Gaming Mode without losing access to your clean, unmodded base game installation.
Prerequisites Before Installing on Steam Deck
Before configuring Evolution, ensure your Steam Deck environment is prepared with the correct files and storage structure:
- A working installation of Naruto Shippuden: Ultimate Ninja Storm 4: The base PC game must be installed on your Steam Deck via your Steam library. Run the vanilla game at least once so default folders and configuration profiles are generated.
- Official Evolution launcher executable: Download the Evolution setup executable directly from the project's official website (
unsevolution.com). - Clean installation directory: Remove any conflicting third-party Storm 4 mods. Combining files from other mod packages can cause missing character models, failed loads, or launcher crashes.
- Proton compatibility tool: Ensure Steam's Proton Experimental is installed and up to date on your Deck.
Step-by-Step Installation on Steam Deck
The installation relies on Steam Deck's Desktop Mode to position files, followed by using Proton Experimental in Gaming Mode to run the updater.
Step 1: Switch to Desktop Mode and Place the Launcher
Press the physical STEAM button on your device, navigate to the Power menu, and select Switch to Desktop.
Open your browser, download the Evolution launcher executable from the official project site, and copy the file into your Storm 4 game directory. In a standard Steam installation, the base game folder is located within your Steam library path under:
~/.local/share/Steam/steamapps/common/NARUTO SHIPPUDEN Ultimate Ninja STORM 4 (or your secondary microSD card equivalent).
Paste the downloaded Evolution executable directly into the root folder where the original game executable is located.
Step 2: Add the Launcher as a Non-Steam Game
- Open the Steam desktop client.
- Click Games in the top menu bar, then choose Add a Non-Steam Game to My Library.
- Browse to your Ultimate Ninja Storm 4 game folder and select the Evolution launcher executable you just pasted.
- Confirm by clicking Add Selected Programs.
Step 3: Configure Proton Experimental and Run the Updater
- Return to Gaming Mode using the Return to Gaming Mode shortcut on the desktop.
- In your Gaming Mode library, locate the newly added launcher shortcut under the Non-Steam category.
- Open its settings by selecting the gear icon, navigate to Properties, and select the Compatibility tab.
- Check the box to Force the use of a specific Steam Play compatibility tool, then choose Proton Experimental from the drop-down list.
- Launch the program. The Evolution launcher window will open on screen.
- Select your target branch (such as the standard Release Build or the experimental Test Build).
- Tap the Updater button located in the top-right corner of the launcher interface.
- Click the Install button situated above the white log window on the bottom-left.
- Wait for the launcher to download and deploy the necessary assets. When the log displays a "Finished" status, exit the launcher.
Step 4: Add the Modded Executable for Gaming Mode Play
Once the updater completes, it generates the modified game binary inside your Storm 4 directory.
- Switch back to Desktop Mode.
- In the Steam client, click Games and choose Add a Non-Steam Game to My Library once more.
- Navigate to the game folder and select the newly created executable:
NSUNS4e.exe(or the equivalent executable marked with "Test" if you chose a test build). - Add the program to your library.
- In the shortcut's Properties under the Compatibility menu, check Force the use of a specific Steam Play compatibility tool and assign Proton Experimental.
You can now return to Gaming Mode and launch NSUNS4e.exe anytime you want to play Storm Evolution. To play the unmodded base version, simply launch the standard Ultimate Ninja Storm 4 title from your main Steam library.
Evolution v1.11 Features on Handheld
Running the current build of Evolution on the Steam Deck brings substantial system and visual upgrades over the stock game:
| Feature / Setting | Evolution Implementation | Handheld Relevance |
|---|---|---|
| Save File Management | Uses STORM4E.S instead of base game save | Prevents modded data from corrupting your vanilla Storm 4 profile |
| Display Modes | Borderless Fullscreen Windowed support | Provides stable scaling and clean transitions on Deck's display |
| Framerate Optimizations | 60 FPS circular movement & material improvements | Smoother combat animations and camera tracking during active inputs |
| Input Adjustments | Decreased right analog deadzone for Leader Switch | Improves responsiveness when tagging in support characters |
| Support Mechanics | Re-added Dash Cut with distance & height thresholds | Restores competitive defense options during fast arena pacing |
Save Data Safety and Separate Saves
Storm Evolution uses an independent save file system to protect player progression. The mod saves progress under the filename STORM4E.S.
If the game does not find an existing STORM4E.S file on launch, it automatically reads your vanilla Ultimate Ninja Storm 4 save file and converts it into the Evolution format. This ensures your unlocked story progress and base characters transfer over without overwriting or invalidating your original vanilla save data.
Frequently Asked Questions
Can I launch Naruto Storm Evolution directly through the original Steam shortcut?
No. The standard Steam library shortcut launches the unmodded base game executable. To launch the mod on Steam Deck, you must run NSUNS4e.exe (added as a Non-Steam game) with Proton Experimental forced under Compatibility.
What should I do if the Evolution launcher crashes during setup?
Make sure the launcher executable is placed directly inside the main game directory alongside the original game files before running it. Additionally, verify that Proton Experimental is forced in the shortcut properties within Gaming Mode, as running the launcher under default Linux desktop environments without Proton will fail.
Do I need to re-run the launcher every time I want to play?
No. The launcher is only required when installing the initial files or downloading future project updates via the Updater tab. For regular gameplay sessions, launch the NSUNS4e.exe shortcut directly from your Gaming Mode library.
