the probleme is, tough some company are inteligent engouh to understand that this will not harm them , some are not.
Maybe some esa company have allow some of their game to be published, but I never saw any.
The other trouble is cases like "land of lore" , EA have the rights , when the game was created by westwood.
Autors rights sould ALWAY be in the hand of those who programed the game, not anyone else !