http://www.learnenglish.org.uk/games/vocab-race/sports-words-01/vocab-race.html
There are Vocab Races to practise the following sets of vocabulary:
Sports words (1)
The names of 20 things associated with different sports- you just have to pick the right sport to go with each thing.
Sports words (2)
The names of 20 more things associated with different sports- you just have to pick the right sport to go with each thing.
Let the Magic Gopher read your mind!
http://www.britishcouncil.org/learnenglish-central-games-magic-gopher.htm
It’s stranger than fiction! It’s stranger than fact! Is it magic? Come and find out – you just won’t believe your eyes!
http://www.britishcouncil.org/learnenglish-central-grammar-grammar-games-archive.htm
Did you know that you can learn grammar and have some fun at the same time? That you can practise conditionals and enjoy it? These games guarantee it!
From adjectives to zoo puzzles, from business to wordplay, from dogs to dinosaurs … we’ve got dozens of games to help you practise your vocabulary.
http://www.britishcouncil.org/learnenglish-central-word-games-archive.htm
In each unit you can learn 6 common phrasal verbs on different topics. Each unit has three different sections: Listening, Vocabulary and Reading
http://www.britishcouncil.org/learnenglish-central-word-games-phrasals4fun-index.htm
Learn vocabulary: animals, school, objects, toys, the family…
Instructions should be written in simple English and be easy to follow. Try writing your own instructions.
http://www.bbc.co.uk/schools/ks2bitesize/english/writing/instructions/play.shtml
Use deductive reasoning to find your way across town.
http://www.bbc.co.uk/schools/ks2bitesize/english/reading/deduction/play.shtml
Use your knowledge of conjunctions to join these sentences together.
http://www.bbc.co.uk/schools/ks2bitesize/english/spelling_grammar/language_structure/play.shtml
Play this game answering the questions about Writing, Maths and other different fields: 
http://www.bbc.co.uk/schools/ks2bitesize/games/questionaut/play_popup.shtml