When I think of farming video games the only thing that comes to my mind is Harvest Moon. Marvelous and Natsume in North America pretty much have a monopoly on the genre.
The Unterhaltungssoftware Selbstkontrolle (i.e. German equivalent of the ESRB) has a rating for Farm Life, a Nintendo DS game. I doubt this will be part of their Tom Clancy franchise. (Although, Tom Clancy: Farm Life has a nice ring to it… ) This rating is probably for an all new game either for an all new game or an entry in Ubisoft’s growing line up of Imagine games.
Speaking of the Unterhaltungssoftware Selbstkontrolle and Ubisoft there is a rating for Midnight Play Pack as a DS game too, which sounds like another casual title.