Source-checkedTechnology & automation

Simplexium

by DimaYastrebov · for Minecraft

All-in-one Minecraft expansion: powerful automation, smart interactions, mining mechanics, and visual tweaks.

1.9KDownloads
8 mo agoLast updated
LicenseRef-All-Rights-ReservedLicense
NeoForgeLoaders

About Simplexium

From Modrinth

All-in-one Minecraft expansion: powerful automation, smart interactions, mining mechanics, and visual tweaks.

Simplexium is an all-in-one expansion that goes far beyond simple Quality of Life. It combines powerful automation, advanced world interactions, dynamic farming, and even visual camera filters into a single, highly configurable mod.

Features

| Feature | Description | |:----------------------------|:---------------------------------------------------------------------------------------------------------------------------------------| | Vein Mining | Break one ore block to harvest the entire vein. Works with modded ores. | | Tree Chopping | Fell whole trees. Now with configurable Leaf Decay modes (Instant or Fast Decay). | | Auto-Tool & Weapon | Automatically swaps to the best tool or weapon. Swaps back after use. | | Auto-Refill | Refills hotbar stacks from inventory (and Shulker Boxes!) when they run out. | | Auto-Eat | Automatically eats the best food when hungry or healing. Smart and configurable. | | Sleep Heal | Restores a percentage of missing health when you wake up. Because sleep is healthy! | | Camera Mode | Press F12 for cinematic filters (Warm, Cold, Notch, etc.) and specialized screenshots. | | Easy Harvest | Right-click to harvest and replant. Use a Hoe for 3x3 area harvesting and drop bonuses (hand harvesting gives a 25% penalty!). | | Smart Doors | Opens double doors, trapdoors, and fence gates simultaneously. | | Grief Protection | Optional tweaks: Anti-Trample (crops) and Anti-Enderman Griefing. | | Fast Ladders | Look up to climb faster, look down to slide. | | Sit & Lie | Press X to sit or Z to lie down. Lying down allows crawling through 1x1 gaps. | | Item Throw | Hold Drop key (Q) to charge a throw. Throws items farther based on charge. | | Anti-Strip | Prevents accidental log stripping with axes. Hold Shift to strip. | | In-game Config | Tweak all mod settings directly from the in-game mods menu. No restarts required! |

Feature Showcase

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Configuration

You can tweak almost everything directly in the game! Just go to Mods -> Simplexium -> Config. Alternatively, you can edit the simplexium-common.toml file.

Don't like a specific feature? You can disable Vein Mining, Auto-Swap, Drop Penalties, or anything else individually.

Highlights

From source data

Game versions

Supports 4 Minecraft versions, the newest being 1.21.11.

Loaders

Runs on NeoForge.

Footprint

Rated a light load on a server.

Simplexium on Nxeon

From our catalogue
One-click install
Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
Server side
Required on the server
Server type needed
NeoForge
Server load
light
Smallest plan we suggest
Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
1.10-rc1+1.21.11, released 2026-03-20

Game versions by loader

LoaderGame versionsNewest
NeoForge1.21.1 to 1.21.11 (4 versions)1.21.11

From 5 recorded builds of Simplexium.

Recent builds

BuildReleasedGame versionsLoaders
1.10-rc1+1.21.112026-03-201.21.11NeoForge
1.10-rc1+1.21.102026-03-201.21.10NeoForge
1.10-rc1+1.21.42026-03-201.21.4NeoForge
1.10-rc1+1.21.12026-03-201.21.1NeoForge
1.9.0+1.21.112026-03-111.21.11NeoForge

Run Simplexium on a Minecraft server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on Modrinth as “Mods”

Technology & automation

Machines, power, logistics and automation.

Runs on your server

From source side support

Modrinth lists Simplexium as required on the server. Check its Modrinth page to see whether players need it too.

Compatibility

Game
Minecraft
Loaders
NeoForge
Runs on
Serverrequired on the server
Game versions
1.21.11 and 3 earlier

Verified at the source

  • ✓ModrinthOfficial listing, checked 2026-10-02Open ↗
  • ✓AuthorDimaYastrebov, as published on Modrinth
  • ✓LicenseLicenseRef-All-Rights-ReservedFree

Simplexium, answered

Generated from the mod’s own source data.

Do my players need to install Simplexium?

Modrinth lists Simplexium as required on the server. Check its Modrinth page to see whether players need it too.

Which loaders does it support?

NeoForge.

Is it free?

Yes. Simplexium is free to download from Modrinth. Its license is LicenseRef-All-Rights-Reserved.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run Simplexium on a Minecraft server.

Deploy in about a minute from $4.99 a month, then add Simplexium in one click.