The Director's Cut box includes all the Stretch Goals from the Kickstarter campaign.
It includes additional characters to play as in the Core game complete with their cards and models, as well as new enemies complete with their cards and models to use in certain scenarios in the Core game.
It also includes a rulebook which details how to add the new enemies to the Core game and also includes some additional gameplay modes which includes Traitor mode where one character can be revealed to be a traitor sent by the enemy organization, Umbrella, to sabotage the game from the inside. Real Survival mode takes the Hard mode (also featured in this box) and cranks up the challenge even more and Battle mode is a new solo mode which sees a single character trying to kill as many enemies as possible before the tension deck runs out.