Copyright issues are something else entirely. It's debatable whether you should do anything based on any Sierra or Lucas game, but those are already computer games, already merchandised, and already very commercial. C&H otoh is something that the single author (who is usually acclaimed for his brilliance) is fiercely protective of, and which is considered a form of art within its media, and it is kept away from commercialization.
So what I'm saying is - legally you can't do either. But ethically, I see nothing wrong with a Garfield game, but I strongly object to a C&H game.
(oh and btw there exist NO official C&H t-shirts, coffee mugs, etc. Of course it's easy to stick a JPEG on any smooth surface, but that doesn't make it merchandisable)
So what I'm saying is - legally you can't do either. But ethically, I see nothing wrong with a Garfield game, but I strongly object to a C&H game.
(oh and btw there exist NO official C&H t-shirts, coffee mugs, etc. Of course it's easy to stick a JPEG on any smooth surface, but that doesn't make it merchandisable)