Periodic Fable

Circlo: A tetris shooting game
http://www.andkon.com/arcade/tetris/circlo/

Flow in games – strangely addictive creature game
http://intihuatani.usc.edu/cloud/flowing/

And some interesting blogs/articles about using games in learning (as if that makes it OK…)

Getting It Wrong: Slaying Myths About Video Games (Part 1)

Learning in Video Games (a group blog)

Futurelab handbook on Games and learning (2005)

Futurelab’s year-long project on Teaching with Games (Now complete)

Using games for corporate training (article) All play and more work by Sally Flood in Computing