it keeps the zombies occupied, without them having the chance to compromise the integrity of your actual base.ħD2D have, and still are implementing ways to defend your base. But the point is, you don't care about the structural integrity of the wall, that's it's purpose. if built strong enough, the zombies will spend the whole night attacking this wall. The purpose of this wall is to give the zombies something else to whack at before they get to your base.
one good example would be a wall surrounding your base. One way to counteract zombies destroying your bases is added layers of security. 7D2D has a feature, where you cannot build unrealistic structures, and your base must be structurally sound, or your building will collapse. When, and if zombies do reach it to your base, they will eventually overtime compromise the structural integrity of your base. This includes, destroying anything obstructing their path, and finding the path of least resistance. The zombies of 7D2D, are relentless foes, doing whatever they can to get inside of your base and kill you. Lighting no longer has any effect on zombies (or at least they still run at night if you shine a flashlight at them or place a torch I not sure about power or toughness but it probably doesn't work on that either. Thanks to Clifford for the updates to this page. Here are some 7 Days to Die hints, tips and tricks by Centinal.