Yes well I don't play games under linux, and didn't know what WinEX was until you mentioned it. After a swift search on google, i have found that their webpages is:
For the record, it is not WinEX, it is WineX. Wine is a famous windows emulator written for linux, and apparently WineX is intended to run DirectX applications.
I can see that you are using Redhat, so installing it with rpms shouldn't be a big hassle. Unfortunately they require you to be a subscribe in order to download it. I have found some rpms for Redhat 8 but I don't think they would be useful in such a delicate subject.