The full game is marked down to $13.59 from its original price of $39.99 until Sept. 30. Fashion Victim and Survivor downloadable packs have also been discounted by 66 percent. The free weekend lasts until Sept. 29 at 1:00 p.m PT.
Dead Island: Riptide launched on April 23 in North America for Xbox 360, PlayStation 3 and Windows PC. For information about the game, be sure to read our review.