German learning games: free online activities

The site I am proposing offers fun games, worksheets and materials with audio for learning more than 80 different languages. The following link obviously refers to the German section.
The activities are intended for both adults and children and do not require registration or payment of a fee. Materials for learning language structure, spelling, letters, word and sentence formation, slang and expressions are included.

Digital Dialects - German learning games

Direct link: Digital (German)