Starting FTB StoneBlock 4

FTB StoneBlock 4 1.23.0

FTB StoneBlock 4 is an underground survival modpack by Feed The Beast for Minecraft 1.21.1 on NeoForge: start inside a world of stone and dig your way out.

What do you need to play FTB StoneBlock 4?

Minecraft
1.21.1
Mod loader
NeoForge 21.1.250
Mods
410
Quests
942
Java
21
Memory
8 to 10 GB

Memory is a starting point, not a rule: a big base or a busy server wants more, and giving a pack far more than it needs can make it stutter.

How do you install FTB StoneBlock 4?

  1. Install FTB StoneBlock 4 from a launcher that handles modpacks: the CurseForge app, Prism Launcher or the FTB App. They fetch the mods and the right loader for you.
  2. Pick version 1.23.0 unless you're joining a server on an older one.
  3. Give it 8 to 10 GB of memory in the launcher's Java settings.
  4. Java 21 is what this Minecraft version runs on; launchers usually install it for you.
  5. The first launch takes a few minutes while the game builds its caches. Later launches are much faster.

What should you do first in FTB StoneBlock 4?

The first steps of FTB StoneBlock 4's main quest line, in the book's order.

The rest of the path through FTB StoneBlock 4 →

Which FTB StoneBlock 4 mods should you learn first?

The mods most of FTB StoneBlock 4 is built around. Each guide says what the mod does, how to start it, and what this pack changed about it.

How do you fix common FTB StoneBlock 4 problems?

Step-by-step answers to "why isn't it working?" for mods in this pack, each checked against the versions it names.

All troubleshooting pages →

What if something doesn't work?