Doctor Who: Defeat Deffry
Web Browser Game
Release date: 4/29/2006 (19 years ago)
A Flash web game inspired by Doctor Who episode "School Reunion". Mr. Finch, the headmaster of Deffry Vale High School, asks you to break the alien Krillitane code after some logic and sequence tests.
Doctor Who: Defeat Deffry was developed and published by BBC(1)