Hi there! I see you're having trouble playing DoubleDown on your Windows device using a WebKit-based browser. Let's get this sorted out together.

To start, could you please tell me a bit more about what exactly happens when you try to play DoubleDown? For example:
- Does the game fail to load entirely, or does it freeze or crash at some point?
- Are you seeing any error messages or codes?
- Have you tried any steps already, like restarting your browser or clearing cache?

Once I have these details, I can guide you through the best troubleshooting steps tailored for your setup. Meanwhile, here are some quick things to try that often resolve these kinds of issues:

1. Restart your browser completely. Sometimes a fresh start is all it takes.
2. Clear your browser cache and cookies. This removes any old files that might be causing loading problems.
- In most browsers (including WebKit-based), you can do this by going to settings → privacy → clear browsing data, then select cached images and files, and cookies.

3. Make sure your Windows 10 is up to date, as system updates can affect compatibility.

If these don't resolve it, I can help you check network settings, browser compatibility, or deeper app/server issues.

Does that sound good to you? And again, any extra info you can share will help me assist you better!