SOLUTION! For those that can’t get it to work, you just gotta add (www.) after https:// and remove the part that i marked with double parantheses in the first link below.
https://realmofthemadgod((hrd.appspot)).com/AssembleeGameClient1530201621.swf?
Final thing looks like this:
https://www.realmofthemadgod.com/AssembleeGameClient1530201621.swf?
Np
Here’s my video on how to get the info for the link
It’s a little bit outdated but it still works.