Let me be more specific then.
This game, which is made by a Taiwanese company (and therefore is not on a list of recognized vendors), needs to patch every time it runs (meaning, writing files to a commonly-shared area of your hard drive, as opposed to open office which writes files to your account folders, and it's a recognized software anyway.), and thus, UAC doesn't like it.
I agree with the OP that this is not a good reason for needing Admin rights.
Writing to the hard drive (in general) DOES NOT require administrative privileges. Writing to C:\Windows\ or C:\Program Files\ or C:\Program Files (x86)\ DOES.
If the game needs to update or whatever all the time, then it SHOULD NOT install to any of those locations. Games that need to do this usually create or default to install in C:\Games\ some place to avoid the need to Administrative Privileges.
My son installed Aura Kingdom, and I have since made him remove it for two reasons:
1) I am not around all the time to input the admin password just so he can play
2) Giving the launcher admin rights EVERY TIME it runs is a HUGE SECURITY PROBLEM. The installer at that time will have privileges to do anything it wants after the password is put in. Potentially Unwanted Programs (PUPs), or other malware can be installed easily. If this is the goal of Aeria games, then you will find your company on the short list of software that programs like AdwCleaner, MalwareBytes, etc. consider to be unfriendly. If not, it leaves your running program open to attack from other possible malware that can ride on top of your admin rights in order to do something bad to the user's PC
If your company wants to create a game properly, WITHOUT the need to admin rights, you would have known how to do this before creating this stupid requirement to have right required every time it runs. You would also have support technicians that KNOW WHY it was needed, and understand how UAC works under different versions of Windows.
Suggesting that people turn off UAC is an even WORSE security problem as the entire computer becomes at risk all the time, and not just when one of your games is run.
I didn't watch the entire installer run when it did, but if it has the option during installation (which almost all properly written installers have) to change the installation location, I will see if changing the default location to C:\Games\ will remove the repeated need for admin rights.
Programs DON'T request administrative rights on their own just to have them. What they do is attempt to write to a protected location, and then the operating system will produce the UAC prompt. Now, if the program is in a location not under UAC control, no prompt should appear.