Question Is UGS the right thing for me?

Hi,
i am a beginner and i start creating my first game (which is quite nice at the moment).

No, i am looking for some functionalitys and i ask if UGS is the thing i need...

What i want:

1. Use it for Steam (PC), iOS and Android
2. Playerdata gets saved online and can not be manipulated by the player
   • Save Data such as inventory, Charaters, Energie, Gems, Gold etc...
3. Every Player has its own account
   • Steam Logs in automaticly with Steam-Account
   • iOS uses GameCenter for Login
   • Andriod uses GooglePlay
4. Data must be synced over all devices
5. Login with 2 (or more) devices at the same time must be impossible
6. Player should communicate
   • Chat
   • Mailbox
7. Leaderboards (who has the most Gold for example)
8. Some Playerdata must be visible to other players (clickable Player-Profile for example)
9. Provide functionality for Ads and Ingame-Shops

My question:

1. Does UGS provide all these things?
2. As my game is in development, i am only a hobby-Programmer and i dont know if i will ever be finished, i dont want to pay while i develop... Is UGS free while in development?
3. Are there "better" or easier to use alternatives to UGS?

Thanks a lot for Help!
Art

 

I would recommend you to check out the overview of the services in the documentation: https://docs.unity.com/ugs-overview/OverviewOfServices.html

You will find answers to most of your questions there.

 

To be fair, the page doesn't do a good job of listing what platforms each service supports. For example, some support PC while others, like Push notification, only Android and iOS, but you have to drill down into sub-pages of each and every service to find out.