Player can find references back to the original source material (or to itself), such as copies of the source material (or copies of itself), whether or not the player can interact or use them.
The first video game about Recursive reference was released on August 1990.
Solely for games flagged as tie-in.
* Games based on a book have that book somewhere in the game world. Or any other media, such as a DVD case.
* Player can find posters advertising the source material (and effectively themselves)
... and so forth.
Technically this is metafiction, but if it's only limited in this manner, then please do not add the parent tag.