tie-in

yhteys Something that is related or connected to another
An authorized product based on a media property, such as a film or video game, by way of cross-promotion.
1986, Max Phillips, Backlash (in Your Sinclair magazine, December 1986)

So while it might be pretty neat to see yourself as one of The Young Ones, as Dirty Den, Cobra, Rambo, Scooby or any of a hundred others, it's not really enough to cover up for the real problem with tie-in games.