Walkman1014, have a read of this thread;
http://forum.thegamecreators.com/?m=forum_view&t=213841&b=41
Although Google Play Services are not available for Tier 1 users, Paul (the developer of AGK) has posted advising a way of achieving this in Tier 2.
FYI, I believe this is incorrect;
Quote: "Google Play requires (repeat... requires) at least 5 achievements and the option to connect to google play game services (player doesn't need to, but YOU as the programmer MUST implement this functionality regardless to have your app approved). "
Google Play Services is not a mandatory requirement. I have 9 apps (using Tier 1) published on Google Play, none of which utilise Google Play Services nor do they have 'achievements'...
Without doing any research it may very well be mandatory to have the Google Play SDK implemented (which it is in AppGameKit for Ad purposes), but there is no requirement to use any of the features...
EDIT: Welcome by the way, I see you are a new user
Using AppGameKit V2 Tier 1