why is my iphone 11 not opening certain game apps. the screens stays black.

Hello QueenHwasa23,

Based on your post, it sounds like you have multiple apps that aren't responding when you attempt to open them. The steps in If an app on your iPhone or iPad stops responding, closes unexpectedly, or won’t open can often resolve the behavior you're describing.

1. "Close and reopen the app - Force the app to close. Then open the app to see if it works as expected.
2. Restart your device - Restart your iPhone. Then open the app to see if it works as expected.
3. Check for updates - To see if updates are available for the app, open the App Store, tap your profile icon, then scroll down to see if updates are available. If updates aren't available for the app, update the software on your iPhone or iPad.
4. Delete the app, then redownload it - Delete the app. When you do this, you might lose data that was stored in the app. Then redownload the app. Then check to see if the problem with the app is fixed."

Try launching the apps after each of these steps. If you're still experiencing issues after completing all the steps above, you'll want to connect with the developer of the app using the steps in How to contact an app developer.

Cheers!