In the Unity project there is an entity-database which contains all spawnable prefabs that exist in the simulation. The following steps are made when a spawn-command is issued by an actor:

1. the spawn command sets which entity should be spawned by calling AddDatabaseEntityID on the inputEntity

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public class SpawnCommand : ICommand { public void Execute(InputEntity e) { e.AddCoordinate(Position); e.AddDatabaseEntityId(DatabaseEntityId); } 

3. the framework receives the command and creates a new game-entitiy 3.1) some necessary components are added to the game-entity (e.g. ID-fields and position)
4. the game-entity gets passed to Unity in addition to the provided database-entity-id
5. Unity looks up the database-entity-id and instantiates a new gameobject
6. additional MonoBehaviours on the gameObject add components to the game-entity