Arkadium Word Wipe no longer works since iOS14.6 update

According to that developers web page that app has not been updated since 2016 and is no longer available in the App Store. Given its age and the fact the developer abandoned it years ago, it was inevitable it would become incompatible with iOS updates at some point.

It looks like you may still be able to play it in a web browser online. But the mobile app versions is gone.

Greetings, .Myipad21

Welcome to the Apple Support Communities. It’s understandable that you’d want your app to work as expected.

Check out: If an app on your iPhone or iPad stops responding, closes unexpectedly, or won’t open 

Should the issue persist, you would need to contact the app developer: How to contact an app developer 

We hope this helps! Feel free to reach back out if you have questions. 

Sincerely.