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FTB StoneBlock 4
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FTB StoneBlock 4

Java modpack listed for Minecraft 1.21. File opened and checked on 22 Oct 2026; downloads from the MC Java Mods app on Android.

by FTB · on CurseForge

The stone remembers. Dive into StoneBlock 4, the next evolution of Minecraft’s underground survival: explore handcrafted Vaults, learn from ancient…

⬇ Download on CurseForge

The author built this one for Minecraft 1.21.1 on NeoForge. On other versions it may install and then do nothing.

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The Stone Remembers

You wake surrounded by stone. No sky, no horizon, just you, surrounded by what seems to be endless stone. But this time, the stone speaks back.

StoneBlock 4 is the next chapter in one of modded Minecraft's most iconic series, rebuilt from the ground up to deliver the underground survival experience you know and love, now with deeper progression, narrative-driven gameplay, and of-course, randomized rewards!


The Vaults: Ancient Trials

Deep within the stone lie the Vaults, ancient trial chambers filled with light, shadow, magical mysteries, and technological marvels. Each Vault tests a different skill: logic puzzles, brutal combat encounters, and endurance challenges that shall push you to your limits.

Vaults are handcrafted experiences that reward exploration with rare loot, unique resources, and progression materials you can't find anywhere else. Conquer the Vaults, and you'll unlock the secrets needed to truly master this modpack.


Echoes of the Old World

Hidden below the Garden of Stone are the Echoes, they're holographic remnants of the civilizations that came before. Each Echo inhabits a handcrafted sanctuary and serves as a living guide on your journey.

From the Echo of Guidance to the Machinist and Quartermaster, these Echo's will unlock new quests, tell stories of the stone filled world, and offer meaningful trade.


The World Engine: Your Journey's Heart

At the centre of it all stands the World Engine, a massive ancient relic that powers your progression. Introduced early and revisited throughout your campaign, the Engine grows with you—unlocking new crafting tiers, revealing lost technologies, and ultimately reshaping the world itself.

With over 15 unique multiblock upgrades, the World Engine transforms from a mysterious artifact into the beating heart of your operation. Every upgrade brings new recipes, new possibilities!


The Garden of Stone: Choose Your Path

Every journey begins in the Garden of Stone, a vast underground glade lit by amethyst light. From here, you'll choose one of five unique starting islands, from the classic stone box survival to thriving biomes alive with mystery.

As you progress through six Foundation Chapters, each with branching questlines, you'll unlock new chambers and awaken dormant Echoes. Complete two paths to advance, or finish all three to uncover deeper lore and premium rewards.


The Unearther: Villager Powered Automation?!

Resource gathering in SB4 has been reimagined. Early on, you'll use a simple brush to sift raw ore chunks from gravel sand and dust, slow at first, until you realise you can ultisift! Then you'll discover the Unearther: a glass cube housing a villager who tirelessly refines the debris you give, as long as you feed them!

The more care you provide through food, tools, and upgrades, the more efficient and skilled your villager becomes. There's also new villager professions like the Archaeologist, Geologist, and Dimensionalist.


Solo or Together

Whether you're breaking stone alone or building with friends, StoneBlock 4 adapts seamlessly.

Host instant FTB Worlds servers directly from the in-game Multiplayer tab—no port forwarding, no hassle—or deploy fully managed instances with Bisect Hosting, all accessible from within the client.


Built with the Best

StoneBlock 4 runs on Minecraft 1.21.1 (NeoForge) and integrates hundreds of community favourites and FTB-developed mods, including:

Custom scripting via KubeJS ties everything together, powering bespoke mechanics like the World Engine, Vault challenges, and Echo progression.


Our Design Philosophy

With StoneBlock 4 we wanted to keep the tradition of endless stone, the randomized loot, and of course, chickens.

You still begin in isolation, still carve your space from solid stone. Exploration returns to the core loop through handcrafted caverns and Vaults.

The result is Freedom with structure. Build your own path while uncovering the echoes of the old world.

 

Server Owners

StoneBlock 4 requires that enable-command-block in server.properties be enabled. Without command blocks enabled the modpack, some of the structures in the world won't function correctly.

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Quick facts

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

These come from our own check of the pack file, not from the source page.

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