I saw some people having issues with DirectX feature level, EasyAntiCheat and Visual C++.
This guide is not about fixing bugs, graphical issues and any other problems that you can get in-menu or in-game. Just fixing the startup problems.

Before reading this guide, I guess you're already viewed this F.A.Q.:
https://sp.zhabite.com/app/2827230/discussions/1/4342112788730566762

Also you're already have:

• Updated Windows (I mean Windows Update)
  
• NVIDIA/AMD/INTEL GPU drivers

Continue reading, if this F.A.Q. is not helps.

Most known issue is DirectX feature level issue.
This game created and compiled on Unreal Engine 5.3, and using DirectX 12 Ultimate / Vulkan 1.3 by default.
No OpenGL support, Epic Games has dropped support of OpenGL in Unreal Engine 5 because it's old renderer.
So, if you open up the dxdiag and see this:



You can say: Yea, I have DirectX 12 on my PC, but the game is not launching!

You'll need to open "Display" / "Render" tab above this window. If you have laptop or PC with dual-graphics card setup, dedicated GPU by default is "Display 2".
I don't know about multiple-GPU rig lol

So if your feature level starts from 12_1,12_0, or even 11_0:





Your GPU doesn't support DirectX 12 Ultimate. It's hardware-related issue, you'll need a GPU hardware upgrade.

Hardware that supports D3D12_2 (DirectX 12 Ultimate):

• NVIDIA: RTX 20xx or newer
  
• AMD: RX 6000 or newer
  
• Intel: Arc (A-Series)

Also D3D12_2 was implemented in Windows 2004 build version.
If you're on Windows 1909, 1809 (old Windows 10 LTSC), or older - you'll need to upgrade to newer Windows build. You can simply check this in "winver" (Run this via Win+R for example) or in metro "Settings" -> "System" -> "About".

If you're on old Windows LTSC build (version 1809) and don't wanna upgrade Windows build, this section for you. I don't guarantee about older build versions like 1803 or lower (even for Windows 7/8/8.1), but you can try.

Vulkan 1.3 supported hardware:

• NVIDIA: GTX 16xx (e.g., 1650) or newer
  
• AMD: RX 5000 series (e.g., 5500) or newer
  
• Intel: Iris Xe (11th Gen) or Arc or newer

Why Vulkan 1.3? Because VKD3D require this version:



So, download vkd3d-proton-[version].tar.zst archive from latest release

https://github.com/HansKristian-Work/vkd3d-proton/releases/latest

and put DLL files from x64 directory here (not from x86!):



The game should launch now.

devs, add native Vulkan 1.3 support, plz!!!

Another known issue - with EasyAntiCheat.
This section is not about avoiding bans, bypassing protection, etc.

It's easy to fix, if you have some problems with it. Try to reinstall.

Uninstall by this command: (just put this in CMD or Win+R)
"C:Program Files (x86)EasyAntiCheat_EOSEasyAntiCheat_EOS.exe" uninstall 22af04e0d5714084adfd927e1d44ac16

IT NOT APPEARS ON "Installed apps" OR "Programs and Features"!!!

EasyAntiCheat_EOS directory from "C:Program Files (x86)" should disappear. If not, it seems like you have another games using EAC. But you can try to delete this directory.
Also you'll need to delete EasyAntiCheat directory from %appdata%.

In nutshell, to fully remove EAC for this game, you'll need to do this:

• Run this command:
  "C:Program Files (x86)EasyAntiCheat_EOSEasyAntiCheat_EOS.exe" uninstall 22af04e0d5714084adfd927e1d44ac16
  
• Delete from %appdata% this directory:
  %appdata%EasyAntiCheat22af04e0d5714084adfd927e1d44ac16

22af04e0d5714084adfd927e1d44ac16 - it's product ID for Wild Assault.
You can get it from [Game install directory]/EasyAntiCheat/Settings.json



If you wanna try to launch this game, EAC will not start, because it's not installed. Also verifying the game files in Steam won't fix that:



To fix that, you'll need to start this setup file:



Yea, you can try to reinstall by reseteac.exe or uninstalleac.exe + installeac.exe, but I not tested that.
Now the EAC should launch now. If you still get some errors, read the log file from:



Example log-file of successful start:

[09:37:21:409] [Windows] [EAC Launcher] [Info] Loaded the following settings .json file: '...SteamLibrarysteamappscommonWildAssaultEAEasyAntiCheatSettings.json'
[09:37:21:409] [Windows] [EAC Launcher] [Info] Provided settings:
[09:37:21:409] [Windows] [EAC Launcher] [Info] - ProcessTitle: Easy Anti-Cheat Launcher.
[09:37:21:409] [Windows] [EAC Launcher] [Info] - ExecutablePath: IronDesert/Binaries/Win64/IronDesert-Win64-Shipping.exe.
[09:37:21:409] [Windows] [EAC Launcher] [Info] - ProductId: [from JSON].
[09:37:21:409] [Windows] [EAC Launcher] [Info] - SandboxId: [from JSON].
[09:37:21:409] [Windows] [EAC Launcher] [Info] - DeploymentId: [from JSON].
[09:37:21:409] [Windows] [EAC Launcher] [Info] - RequestedSplashScreen: EasyAntiCheat/SplashScreen.png.
[09:37:21:409] [Windows] [EAC Launcher] [Info] - WaitForGameProcessExit: false.
[09:37:21:409] [Windows] [EAC Launcher] [Info] - HideGUI: false.
[09:37:21:409] [Windows] [EAC Launcher] [Info] - HideBootstrapper: false.
[09:37:22:271] [Windows] [EAC Launcher] [Info] Embedded resources successfully loaded.
[09:37:22:274] [Windows] [EAC Launcher] [Info] Will use the icon extracted from the game executable.
[09:37:22:382] [Windows] [EAC Launcher] [Info] Loader initializing with bootstrapper version 1.6.5.
[09:37:22:400] [Windows] [EAC Launcher] [Info] Loader component initialized.
[09:37:22:450] [Windows] [EAC Launcher] [Info] [Connection] Connecting to URL: [library_url]
[09:37:22:464] [Windows] [EAC Launcher] [Info] Current progress: 0 (0/0).
... a lot of progress lines
[09:37:22:750] [Windows] [EAC Launcher] [Info] Current progress: 0 (0/0).
[09:37:22:750] [Windows] [EAC Launcher] [Info] [Connection] Connect result: No error (0) Response Code: 304 Destination IP: [EAC_IP]
[09:37:22:750] [Windows] [EAC Launcher] [Info] No update needed.
[09:37:22:750] [Windows] [EAC Launcher] [Info] Current progress: 100 (1/1).
[09:37:22:775] [Windows] [EAC Launcher] [Info] Starting Wine module mapping, Wine version: 10.0. [This line is not required, I'm just on Linux]
[09:37:24:254] [Windows] [EAC Launcher] [Info] Launcher finished with: 301, 'Easy Anti-Cheat successfully loaded in-game'.
[09:37:24:254] [Windows] [EAC Launcher] [Info] Successfully initialized the Easy Anti-Cheat service, waiting for game window to become visible.
[09:37:24:255] [Windows] [EAC Launcher] [Info] Unlocking the launch lock, allowing next game to launch to take place.
[09:37:24:273] [Windows] [EAC Launcher] [Info] Downloaded 1 bytes in 467 ms (0.00 KB/s)

Most rare issue - with Visual C++.
If you're already viewed log-file from EAC and it says that game was crashed with error code 0x... (or something like that), it mostly like you have the issue with Visual C++ 2015-2022.
Try to launch the game directly:



If game is not starting (but it should), in most of cases you have issues with Visual C++ 2015-2022.
Uninstall the x86 and x64 versions of Visual C++ 2015-2022:



After uninstalling, you'll need to start this executable:



This installer will install all required files for this game:



If "Uninstall" button appears, uninstall it. Open again and install.

Enjoy the game.