Lots of dystopian literature came before the resurgence of young adult books like The Hunger Games. Here's some of my favorites in no particular order. I omitted the well known like 1984...
  1. The World Inside by Richard Silverburg
  2. The Earth Abides by George R. Stewart
  3. Where Late the Sweet Birds Sang by Katie Wilhelm
  4. The Edict by Max Ehrlich
  5. Anthem by Ayn Rand
  6. We by Yevgeny Zamyatin
  7. A Very Private Life by Michael Frayn
  8. The Overman Culture by Edmund Cooper