The game ends when all players are down or dead. If the downed player is not revived in an amount of time, then they will bleed out and they will have to spectate other players until it's the end of the round.
This causes the reviving player to stick a 'syrette' into the downed player.
When a player is down, another player may revive them by walking up to the downed player and hold the action button. Two consecutive melee attacks will put a player into Second Chance. Zombies do not carry, use, or drop any weapons, and only use melee attacks. Zombies must knock off each wooden plank in order to climb through the window and enter the building.
Each room in the building contains a number of windows that can be barricaded with wooden planks.
Nacht der Untoten (German for Night Of The Undead) is set in a run-down building, where up to four players must defend against a limitless number of waves of zombies for as long as possible. 6.12 Strategy 12 (Making a Last Stand in The HELP Room).
