Game of Thrones and the marvel and DC licensed games couldn’t have been cheap to license and they “upped” their game with getting bigger and bigger voice actors and for GoT they licensed the likeness of quite a few of the main cast of GoT so HBO and the actors had kept most of the revenue I presume.
Also as their biggest games weren’t something you would let children play i wonder how many parents assumed that shit I’m not letting my kid play this and the adults weren’t really interested in the franchise.
Most licensed games are a pretty big flop only the really good ones make it because they are a good game and not because of the license. Comic book and movie games have always had a horrible stigma with being poor games and in all honest the staleness of the TTG formula didn’t really help at that point.