i recommend any.run a virus scanning website that you can interact with the program on a virtual machine. Most games shouldent connect to the internet since the files should be on the folder. If you see the tab DNS request or connections with numbers higher than normal than it is either tracking you or doing something else.
Here is an example of a test i did: https://app.any.run/tasks/92f33c83-d98f-46e5-b57f-f2b074f6b2e5/
Here is a test without virus: https://app.any.run/tasks/40128460-3505-45e0-af7b-e80f40a0363e/