Oneblock Ultimate

A modern recreation of the classic Oneblock experience — rebuilt for NeoForge 1.21.1.

Oneblock Ultimate is a polished, stable, and flexible Oneblock modpack, recreated entirely from scratch. The original from TL Mods was never republished, so this is a fresh take — redesigned for modern systems and built to run any Oneblock map you want to play.

Getting started

Install the pack with the Modrinth app
On first launch, a FancyMenu prompt offers recommended Oneblock maps — pick one and you're in
Later, swap in any map you like. Classic, modded, themed, or challenge-based — it all works

The pack doesn't bundle maps on purpose: we can't redistribute other people's work without their consent, and that respect is exactly what sets us apart. Oneblock Ultimate is the only pack built around that principle — and the in-game helper makes setting up your map effortless instead of a chore.

What's inside

Performance & FPS

Sodium, Lithium, FerriteCore, Dynamic FPS, ImmediatelyFast
Entity Culling, More Culling, Model Gap Fix, LightSpeedRe, ScalableLux
Alternate Current, Clumps, LambDynamicLights, Lighty

Visuals & Shaders

Iris Shaders, Reese's Sodium Options, Sodium Extra, Smooth Gui
Entity Model Features, Entity Texture Features, Continuity

Quality of Life

REI, Jade, AppleSkin, Enchantment Descriptions, Better Advancements
Controlling, Crafting Tweaks, Mouse Tweaks, Inventorio, TrashSlot
Bridging Mod, Forgiving Void, NetherPortalFix, KleeSlabs, Snad
No Crop Trample, Better Farming, FallingTree, Ding, Tutorial Suppressor

Storage & Automation

Storage Drawers, Iron Barrels, Iron Furnaces, GraveStone Mod

World & Content

Supplementaries, Supplementaries Squared, Doggy Talents Next
AI Improvements, Sleep, Let Me Despawn, Almanac

Maps & Server

Xaero's Minimap, Xaero's World Map
Simple Voice Chat, LAN Server Properties, NeoAuth, No Chat Reports

Audio & Immersion

Sound Physics Remastered, Melody, Immersive UI, AsteorBar, Neat

Libraries (API) — Architectury, Balm, Cloth Config, YACL, Bookshelf, Moonlight Lib, Kotlin for Forge, FancyMenu, and more

Why Oneblock Ultimate?

A clean, modern base: built specifically for Oneblock, nothing extra, no forced worlds
NeoForge 1.21.1: the current ecosystem for performance, compatibility, and stability
Performance first: a curated stack that stays smooth even in late-game islands
Regularly updated: new versions keep your world alive and compatible

Support

Found a bug or have a suggestion? Send a message in the discord server. I read everything. Literally.

Looking for a server to run it on? I use NeyHost — grab 30% off your first month with code LEAF30 (their hosting is genuinely great):