Should I create different projects for iOS(Game Center) and Android(Google Play Games)?

Question

I have an Android Game made with Unity that is succeeding and now I want to launch it for iOS.

Should I have two Unity projects, one for Android and another for iOS, or can I do it with an only project?

I use Google Play Games and I want to use Game Center for iOS, and I don't know if it all could work in a single project.

Answer 1

Should I have two Unity projects, one for Android and another for iOS, or can I do it with an only project?

No . You only need one project. Multiple projects will be very hard to maintain and that's unnecessary.

Use Unity's directives such as UNITY_IOS and UNITY_ANDROID to make Unity include your Game Center code for iOS and Google Play Games code for Android during compile-time. See Platform dependent compilation for other directives.

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You can also do this during runtime by checking Application.platform with RuntimePlatform.Android and RuntimePlatform.IPhonePlayer .