11 3D Plastic Doors to bring a new dimension to your game! This includes 5 generic grey doors, and 6 other mission-specific colored doors in pink, white, blue, purple, green, and yellow. Doors in Zombicide: Invader are not handled the same way as in previous Zombicide games. Since it is your base that's being invaded, initially all doors are open (unless otherwise required by a mission), which means there are no door tokens on the board, only openings on the tiles. Survivors can decide to close a door next to them, placing a Closed Door on an opening. They can also open them again by simply removing the Closed Door. However, when Xenos try to move past a Closed Door, they bust it open and it becomes a Destroyed Door. Such doors are permanently open and cannot be closed again. Taking these rules into account, the 3D Plastic Doors have two modes: Closed and Destroyed. When a Closed Door is Destroyed, simply swivel down the door pane so it's lying flat on the ground!