About Simplexium
From ModrinthAll-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
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 dataGame 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
| Loader | Game versions | Newest |
|---|---|---|
| NeoForge | 1.21.1 to 1.21.11 (4 versions) | 1.21.11 |
From 5 recorded builds of Simplexium.
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 1.10-rc1+1.21.11 | 2026-03-20 | 1.21.11 | NeoForge |
| 1.10-rc1+1.21.10 | 2026-03-20 | 1.21.10 | NeoForge |
| 1.10-rc1+1.21.4 | 2026-03-20 | 1.21.4 | NeoForge |
| 1.10-rc1+1.21.1 | 2026-03-20 | 1.21.1 | NeoForge |
| 1.9.0+1.21.11 | 2026-03-11 | 1.21.11 | NeoForge |
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 catalogTechnology & automation
Machines, power, logistics and automation.
Runs on your server
From source side supportModrinth 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











