The Hordes
The mod is compatible with Forge and requires the Atlas Lib library. In Minecraft version 1.21+, only Neoforge will be supported instead of Forge.
Mass Invasions
You hear the howling of an approaching horde...

On configurable nights, hordes of monsters will attack your base in waves from midnight until morning. The settings allow you to change the types of encountered mobs and the time of day for attacks.
Guides for configuring the mod for version 1.2.0+ are available in the corresponding section.
Zombie Infection
If the feature is enabled, players and horses can become infected after being hit by a zombie. After 5 minutes of infection or upon the death of the infected creature, transformation into a zombie occurs.
In the case of a player, this results in their death and the appearance of a zombie version of the character in their place.
The infection can be cured with a golden apple in the default settings, but any consumable item can be configured for use. Reverse transformation is not possible.
Additional default settings extend the infection to villagers, preventing their cure from the zombie state.
The configuration includes an option to add any zombie variants of mobs from other mods to the list of entities that can be infected, provided there is a corresponding zombie for transformation.
Version 1.3.0+ supports custom textures, allowing the creation of zombie versions of similar mobs.

Zombie Players

When a player dies from infection or with an additional setting enabled, a zombie version of that player appears in their place with all their items. Underwater, a drowned version appears.
By default, zombie players do not burn in sunlight, but this feature can be disabled in the settings.
Additional Tweaks
Additional settings allow making zombie horses hostile mobs (enabled by default) and preventing undead mobs from burning in sunlight (disabled by default).
Special thanks to bstylia14 for the original mod concept, ideas, and assistance in development, as well as Ski_Z for help in finding bugs and suggestions for mod improvements.