Homeworld 3, is a very interesting game, has run into a problem for some players. They’re facing an error message that says, “DX12 is not supported on your system. Try running without the -dx12 or -d3d12 command line argument.” Even though they have DirectX 12 installed, they can’t start the game.
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Fixing Homeworld 3 Can’t Launch – DirectX 12 Not Supported
Here are some methods advised by Reddit that will help you to resolve this error. and Here are some ways to solve this error.
Update your graphics card drivers
- Press the Windows key and the letter “
I” at the same time to open System Settings. - Go to “Update & Security” and see if any updates are available.
- Install any updates that are waiting and then restart your computer.
- This usually makes DirectX 12 work for most games.
Game Launch Options
- Right-click on the Homeworld 3 icon in Steam.
- Select “Properties.”
- In the box that pops up, see the Launch options.
- Add “-dx11” into that box.
- Close the window and try starting the game again.
This change verifies the game starts using the DirectX 11 example of 12.
Run in Compatibility Mode
- Create the game to work like it’s running on an older version of Windows, like Windows 8.
- This might help the game work well if it’s having problems with newer versions of Windows.
Update Windows
Confirm your Windows 11 or Windows 10 is updated to the newest version available. You can do this by using the official updates provided by Microsoft.
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