Should be vanilla.

Particle optimizations: Culling, rendering optimizations, configurable particle-type-specific spawn reduction, and potion particle disabling. Compatible with Sodium, improves performance over Sodium alone.

A mod which overhauls the vanilla creepers!

Enderman Overhaul adds over 20 new enderman variants, each with their own sounds, models, and animations!

Allows you to crawl

Elegant - and likely hostile - vessels lost in the seven seas...

Boids simulation for flocking fish 🐟

Smooths out the skybox colors on far render distances and fixes some other skybox visual issues.

Vanilla style improvements for overworld trees.

This mod aims to improve the wilderness of Vanilla Minecraft by adding new biomes and improving vanilla biomes

A mod about hollow logs and hollow promises

A Minecraft Datapack: When you fall out of the world, you end up in the dimension beneath

add many features related or not to mushrooms

Renders arrows stuck in mobs and allows picking arrows out of mobs

Varied sizes for vanilla villages.

Makes burning things much more interesting

Arrows splatter melons and pumpkins