Christminster is a fictional town and university, modelled on Oxford, that appears in Thomas Hardy's novel Jude the Obscure.
Christminster is also a work of interactive fiction by Gareth Rees, set in Christminster. (Although Rees borrowed the place names from Hardy, his Christminster is modelled more on Cambridge.)
More on [ Christminster ]
Z Machine :: Interpreters
Freeware :: Video Games

Baf's Guide to the IF Archive: Christminster - Capsule review and downloads.
Christminster - Author Gareth Rees's official page, with download and sample transcript.
XYZZYnews Review - Review by Eileen Mullin. 'Christminster' joins the crowded field of IF games with a collegiate setting, but this one comes in at or near the head of the class.