Non-museum educational games that may be of interest

Channel 4

1066: about the Battle of Hastings
http://www.channel4.com/history/microsites/0-9/1066/game/

Routesgames: about genetics and genetic testing. Minigames, UGC and ARG

http://www.routesgame.com/home/

Trafalgar origins: showing how Britain has been assisted in times of conflict by non British nationals

http://preloaded.com/work/trafalgar-origins/

Red Redemption

Fate of the world: social change game about climate

http://fateoftheworld.net/

UK Parliament's Education Service

MP For A Week: simulates the work of MPs and aims to demystify the role of Parliament

www.parliament.uk/mpforaweek

MyUK: about law-making and the political 'big-picture'

www.createmyuk.org

Molle Industria

Oiligarchy: characteristically off beat look at the oil business
http://www.molleindustria.org/en/oiligarchy

Institute for the Future

Foresight engine: crowdsourcing future forecasting

http://foresight.breakthroughstocures.org/

Association of Teachers of Mathematics

L: a mathemagical adventure: educational text adventure about maths (from 1984)

http://www.atm.org.uk/shop/products/sof073.html

http://en.wikipedia.org/wiki/L_%E2%80%93_A_Mathemagical_Adventure

Human Body/Anatomy Games

http://www.scitunes.com/