Complex sentence: Mayfair has worldwide English-language publication and distribution rights for the very popular The Settlers of Catan family of games and is (2011) releasing the card games "Struggle for Catan" and "Rivals for Catan" to highlight the brand's 15th anniversary.
Split into simpler sentences: Mayfair has worldwide English-language publication and distribution rights for the very popular The Settlers of Catan family of games. In 2011 Mayfair released the card games "Struggle for Catan" and "Rivals for Catan" to highlight the brand's 15th anniversary.