Minecraft wiki entry for Creating_a_village, associated text: Catching and curing a zombie villager is another way to obtain a villager. Zombie villagers can be found in igloo basements, or in abandoned villages, but occasionally they can be found anywhere in the overworld. It is recommended to build traps (like large holes 2 or 3 blocks deep) to hunt them. They do not spawn in other cases where normal zombies may spawn; e.g. from spawners or as a reinforcement spawned by an attacked zombie or zombified piglin.