Im not sure I understand what you mean. Can you elaborate or provide some pseudo code?

So you have a singleton base class with a property that is polymorphic between two of its derived classes? Is that what you are trying to say?

Im not sure what it has to do with inheritance other than the fact you are deriving the base class twice.

Is this what you mean?

 public class Base
 {
     public Base derived { get; set; }
 }
 
 public class DerivedA : Base
 {
     
 }
 
 public class DerivedB : Base
 {
     
 }
 
 public class Example
 {
     public Example() {
         var test = new Base {
             derived = new DerivedA()
         };
 
         Debug.Log(typeof(DerivedA) == test.derived.GetType()); // TRUE
 
         test.derived = new DerivedB();
 
         Debug.Log(typeof(DerivedB) == test.derived.GetType()); // TRUE
     }
 }

Sorry, I'm new at posting questions here. I'll try to make more sense and be more clear.

The context of my question is that I'm trying to create a game with a bunch of different $$anonymous$$i-games. I want to use one base class for a general game manager with code for spawning, etc. and I want a separate class for each $$anonymous$$i-game containing the gameplay code.

I would like to use the same player script for all $$anonymous$$i-games but the player wouldn't know which $$anonymous$$i-game script it should look for, but it would be able to know the base class (since that would always be consistent). I am wondering what the best way to do this is.

Also, thanks for the super quick responses.