# MobEffects<\/p>\n
**MobEffects** is a lightweight, vanilla-inspired Paper plugin that extends the existing Minecraft mechanic where spiders can spawn with potion effects.<\/p>\n
In vanilla Minecraft, spiders have a small chance to spawn with effects such as Speed, Strength, Regeneration, or Invisibility.
\nMobEffects applies the same idea to other hostile mobs, without adding complex systems or altering core gameplay.<\/p>\n
## Configuration-driven design<\/p>\n
MobEffects is fully configurable through `config.yml`.<\/p>\n
Both the list of affected mobs and their potion effects can be freely modified.
\nThe default configuration uses **Zombie**, **Skeleton**, and **Creeper** as examples, but these are not hard-coded limitations.<\/p>\n
Server owners can:
\n– Add or remove mobs from the configuration
\n– Change effect lists and effect levels
\n– Adjust spawn chances and effect durations
\n– Switch between random or fixed effect application modes<\/p>\n
No code changes or recompilation are required.<\/p>\n
## Default behavior<\/p>\n
By default, effects are applied only when:
\n– The mob spawns naturally
\n– It is night time
\n– World difficulty is Normal or Hard
\n– A configurable chance check succeeds<\/p>\n
The plugin does not modify mob AI, attributes, damage, drops, or behavior \u2014 it only applies potion effects.<\/p>\n
## Default mob setup<\/p>\n
The following mobs and effects are used in the default configuration:<\/p>\n
– **Zombie** \u2014 Speed, Strength
\n– **Skeleton** \u2014 Speed, Invisibility
\n– **Creeper** \u2014 Nausea, Slowness, Blindness, Weakness <\/p>\n
Zombie and Skeleton effects are almost permanent, similar to vanilla spider effects.
\nCreeper effects last for a configurable random duration (30\u201345 seconds by default).<\/p>\n
## Effect modes<\/p>\n
MobEffects supports two effect application modes:
\n– **ALL** \u2014 the mob receives all listed effects
\n– **RANDOM_ONE** \u2014 the mob receives one random effect, like vanilla spiders<\/p>\n
## Compatibility<\/p>\n
MobEffects is designed to work alongside datapacks such as **Upgraded Mobs**.
\nIt does not override or interfere with datapack mechanics and applies effects with a short delay to avoid conflicts.<\/p>\n
## Philosophy<\/p>\n
MobEffects follows a vanilla-first design philosophy:
\n– Simple mechanics
\n– Predictable behavior
\n– Minimal performance impact<\/p>\n
The goal is to make hostile mobs slightly more varied, while still feeling like part of vanilla Minecraft.<\/p>\n","protected":false},"excerpt":{"rendered":"
Vanilla-inspired spawn potion effects for hostile mobs<\/p>\n","protected":false},"featured_media":103813,"template":"","meta":{"_minecraft_slug":"mobeffects","_minecraft_project_id":"mkgUk1gA","_minecraft_author":"sw1ik","_minecraft_license":"MIT","_minecraft_downloads":52,"_minecraft_follows":2,"_minecraft_client_side":"unsupported","_minecraft_server_side":"required","_minecraft_storage_type":"zip","_minecraft_archive_name":"mobeffects.zip","_minecraft_size_bytes":7923,"_minecraft_version_count":1,"_minecraft_updated_at":"2026-05-15T21:09:04.367709Z","_minecraft_date_created":"2026-01-24T23:53:24.770057Z","_minecraft_date_modified":"2026-01-22T21:35:10.857595Z","_minecraft_project_url":"https:\/\/modrinth.com\/mod\/mobeffects","_minecraft_icon_attachment_id":103813,"_minecraft_imported_at":"2026-06-05T23:22:55+00:00","_minecraft_import_hash":"c58f6fe7fd6ea1819a58fb1c1cc51752","_minecraft_versions":"","_minecraft_links":"","_minecraft_gallery":"","_minecraft_api_metadata":""},"mod_category":[124,43,89,137,127,128,129],"mod_loader":[130,132,133,134],"minecraft_version":[101,102,62,37,40,41,73,74,38,78,79,80,81,82],"class_list":["post-103812","mod","type-mod","status-publish","has-post-thumbnail","hentry","mod_category-bukkit","mod_category-cursed","mod_category-game-mechanics","mod_category-mobs","mod_category-paper","mod_category-purpur","mod_category-spigot","mod_loader-bukkit","mod_loader-paper","mod_loader-purpur","mod_loader-spigot","minecraft_version-1-20-5","minecraft_version-1-20-6","minecraft_version-1-21","minecraft_version-1-21-1","minecraft_version-1-21-10","minecraft_version-1-21-11","minecraft_version-1-21-2","minecraft_version-1-21-3","minecraft_version-1-21-4","minecraft_version-1-21-5","minecraft_version-1-21-6","minecraft_version-1-21-7","minecraft_version-1-21-8","minecraft_version-1-21-9"],"yoast_head":"\n