How much RAM does an All the Mods 3 server need?

8 GB is our recommendation. Loading 261 mods and their recipes takes a large chunk of memory before anyone joins, and the rest goes to worlds full of ticking machines. If your group builds big Applied Energistics 2 autocrafting setups or runs several Mekanism factories, move up a step. Check spark for lag first, since a single runaway machine often looks like a memory problem.

How many players can share one ATM3 server?

It depends less on headcount than on what each player builds. A small group of friends is comfortable on the recommended RAM, since everyone tends to specialise in a different corner of the pack. Each active base adds loaded chunks and machines, so a bigger group with several automated bases needs more memory and a pregenerated world.

How do I update All the Mods 3 safely?

Back up the whole server first. ATM3 finished at v6.1.1, so an update usually means lifting an older world onto that build. Mods removed between versions delete their blocks and items on the next load, so read the changelog for dropped mods, empty any affected storage, and only then install the new build from the Modpacks tab.

Can I add or remove mods?

Yes, through SFTP or the file manager. Any mod you add must be a Forge 1.12.2 build, and content mods must also go on every player's client or they cannot join. Removing a mod erases its blocks and items from the world, so take a backup first. Server-side tools such as spark are safe additions that clients never need.

How does ATM3 compare with All the Mods 6?

Both are ATMTeam kitchen sinks, but they belong to different eras. All the Mods 6 runs on Forge 1.16.5 and ends with crafting the ATM Star, while ATM3 on 1.12.2 has no fixed goal and gathers several mods that never made the jump past 1.12. Pick ATM3 for that classic lineup, ATM6 for newer versions and a clear finish line.

Why does ATM3 need Java 8?

Forge for Minecraft 1.12.2 was built on Java 8 and fails to start on Java 9 or newer, so the server must stay on Java 8 whatever other packs you run. Your players' launchers need the same. Most launchers that install ATM3 pick Java 8 automatically, but a custom setup pointed at a modern Java will crash before the menu appears.

Minecraft modpack · CurseForge

All the Mods 3 Server Hosting

by ATMTeam

ForgeMinecraft 1.12.2Java 8

How install works

One-click install from the Modpacks tab once your server is ready

Recommended RAM: 8 GB
Latest build: v6.1.1Jan 2022
Mod loader: Forge1.12.2
Downloads: 3.1MCurseForge

All the Mods 3 is the ATMTeam's 1.12.2 kitchen sink: 261 mods on Forge 1.12.2, gathered from what many players still call the golden era of modded Minecraft. Tech, magic and exploration sit side by side, so one world can hold an Applied Energistics 2 network, a Botania flower farm and a Blood Magic altar at the same time, with Twilight Forest and the Astral Sorcery constellations waiting for whoever wanders off.

The hook is freedom. There is no single progression line forcing you through one mod before the next. You pick a direction, maybe Mekanism ore processing into Thermal Expansion machines, or Tinkers' Construct tools into Draconic Evolution gear, and the pack lets the systems overlap. Cross-mod combinations are where most of the fun lives, and the final build, v6.1.1, is a settled release rather than a moving target.

It suits groups who remember the 1.12 era and want those mods together again, and newer players curious why that version keeps coming back. A shared server works well because players naturally split into specialists: one runs the storage network, another the magic side, a third explores dimensions and brings back loot for everyone.

Hosting All the Mods 3

RAM and what drives the load

We recommend 8 GB for All the Mods 3. With 261 mods, a large share of that goes to simply loading registries and recipes before anyone joins, and Forge 1.12.2 boots slowly compared to modern versions. After startup, load comes from tile entities: Mekanism factories, Applied Energistics 2 autocrafting, Botania flower arrays and chunk-loaded quarries all tick constantly. If ticks per second drop, install spark and run its profiler to find the machine or chunk responsible before adding RAM.

Pregenerating the world

Exploration in ATM3 means a lot of fresh terrain: dozens of ore types, Twilight Forest portals and extra dimensions all generate on first visit, and chunk generation is the heaviest thing a 1.12.2 server does. Pregenerate the overworld before players spread out. Forge 1.12.2 ships its own generator, which takes a centre point and a number of chunks:

/forge generate 0 64 0 4000

Keep chunk loaders to what automation truly needs, because every loaded chunk keeps ticking with no one nearby.

Java 8 and updating

Forge 1.12.2 runs on Java 8, and newer Java versions crash the pack at launch, so leave the server on Java 8. ATM3 is finished: v6.1.1 from January 2022 is the last build, so updating mostly means moving an old world onto that release. Take a full backup first, because mods that were dropped between builds take their blocks out of the world with them, and there is no getting those back without a copy.

Mods

261 mods on Forge 1.12.2

Tech, magic and exploration mods from the 1.12 era share one world and one set of recipes.

Java

Built for Java 8

Forge 1.12.2 needs Java 8, so the server stays on it rather than a newer runtime.

Final

Settled at v6.1.1

The last build is a stable target, so your world never has to chase monthly pack updates.

How to install All the Mods 3 on your server

1
Order the server
The button on this page preselects the RAM this pack needs. It is online about a minute after checkout.
2
Open the Modpacks tab and search All the Mods 3
Open the Modpacks tab in the panel, search for All the Mods 3, pick the listing by ATMTeam and install the latest build, All the Mods 3 - ATM3-v6.1.1.
3
Press install and wait
The panel downloads the server pack, installs the loader and the right Java version, then restarts.
4
Join with the same build
Everyone installs the same pack build in their launcher, then connects to the address on the Overview tab.

Available builds

Build	Minecraft	Loader	Released	Installable
v6.1.1	1.12.2	Forge	Jan 20, 2022	Installable
v6.1.0	1.12.2	Forge	Jun 11, 2021	Installable
v6.0.0	1.12.2	Forge	Jun 30, 2020	Installable
v5.12.3	1.12.2	Forge	Aug 8, 2019	Installable
v5.12.1	1.12.2	Forge	Apr 11, 2019	Installable