Shardlight is a point-and-click adventure game with a post-apocalyptic theme, set in future Australia twenty years after a nuclear war. Ordinary people live in extreme poverty, suffer from disease and strive to have a chance at getting the vaccine. The society is ruled by the Aristocracy - mysterious masked people who are only known under their pseudonyms taken from history.
We meet the protagonist, Amy Wellard, as she is doing a risky technical job in order to qualify for the vaccine lottery. After she discovers things the government would prefer to keep secret, she decides to switch sides and join the resistance.