Ideas for language games for building vocabulary. Thanks to Jaki.

Elysian recommends as thorough grammar based coverage of French. Aimed at adults, so no cartoons or jokes and best for families where a parent is reasonably fluent in French

Free basic language courses. Impressive variety, including essential phrases in 40 languages and 12 week beginner courses you get a certificate at the end of.
There's a free version that you download to your computer. It's really good for building vocab and works on a flashcards basis.
Free flashcards
French, German, Spanish and Chinese. Recommended by a friend who is a French tutor.

French learning website (also German, Spanish and Welsh versions available). Free to use at weekends and between 4pm and 9am weekdays.