Mods for worlds

WAILA Plugins - a mod that adds plugins for many popular mods. The ability to view information about blocks in the WAILA interface.

The mod makes mobs complex and dangerous, attacking players. Mobs can teleport, destroy villages, and infect players with zombie resurrections. Creepers can break through walls, explode with napalm, and share between targets. The mod is customizable.

The Minecraft: Dungeons mod adds many mobs, including the Royal Guard and the Whisperer. Beta versions contain bugs.

Mo Villages - a mod for generating villages in Minecraft. Expands the list of biomes and village types.

Equipment Compare - a mod for comparing gear on the fly. Useful in a modified environment with unique items.

JEED - a useful plugin for JEI/REI that provides information about status effects, their items, and mods. You can add descriptions for modified effects.

Terrad - a mod for Minecraft that creates more engaging and inspiring worlds for exploration.

Deeper and Darker - a mod for Minecraft with new features and dimension.

Open Terrain Generator (OTG) - a world generation tool for Minecraft. Create your generators and share presets with other players.

LagGoggles - a profiler for Minecraft that allows you to see latency.