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Simplexium

Simplexium

Modrinth

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

1.3k downloads 3 followers updated 3mo ago
latest v1.10-rc1+1.21.11 Modrinth
Neoforge 1.21.1 – 1.21.11 AdventureCursedUtility

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.

Versions

Release
1.10-rc1+1.21.11
neoforge · 1.21.11 · 3mo ago
# [1.10-rc1] - 2026-03-20 ## Added - The loading screen background color can now be customized. ## Changed ### Tags - Added new blocks to the…
30
Release
1.10-rc1+1.21.10
neoforge · 1.21.10 · 3mo ago
# [1.10-rc1] - 2026-03-20 ## Added - The loading screen background color can now be customized. ## Changed ### Tags - Added new blocks to the…
7
Release
1.10-rc1+1.21.4
neoforge · 1.21.4 · 3mo ago
# [1.10-rc1] - 2026-03-20 ## Added - The loading screen background color can now be customized. ## Changed ### Tags - Added new blocks to the…
9
Release
1.10-rc1+1.21.1
neoforge · 1.21.1 · 3mo ago
# [1.10-rc1] - 2026-03-20 ## Added - The loading screen background color can now be customized. ## Changed ### Tags - Added new blocks to the…
44
Release
1.9.0+1.21.11
neoforge · 1.21.11 · 3mo ago
# [1.9.0] - 2026-03-11 this is the stable (although the previous ones were too) and final release of version 1.9.0. ## added - **plants tag:** added the…
17
Release
1.9.0+1.21.10
neoforge · 1.21.10 · 3mo ago
# [1.9.0] - 2026-03-11 this is the stable (although the previous ones were too) and final release of version 1.9.0. ## added - **plants tag:** added the…
7
Release
1.9.0+1.21.4
neoforge · 1.21.4 · 3mo ago
# [1.9.0] - 2026-03-11 this is the stable (although the previous ones were too) and final release of version 1.9.0. ## added - **plants tag:** added the…
6
Release
1.9.0+1.21.1
neoforge · 1.21.1 · 3mo ago
# [1.9.0] - 2026-03-11 this is the stable (although the previous ones were too) and final release of version 1.9.0. ## added - **plants tag:** added the…
18
Release
1.9.0-rc2+1.21.11
neoforge · 1.21.11 · 3mo ago
# [1.9.0-rc2] - 2026-03-05 in version 1.9.0-rc2 i fixed some bugs and added a new feature. ## added - **GUI Scale:** if enabled, allows you to set any…
14
Release
1.9.0-rc2+1.21.10
neoforge · 1.21.10 · 3mo ago
# [1.9.0-rc2] - 2026-03-05 in version 1.9.0-rc2 i fixed some bugs and added a new feature. ## added - **GUI Scale:** if enabled, allows you to set any…
9
Release
1.9.0-rc2+1.21.4
neoforge · 1.21.4 · 3mo ago
# [1.9.0-rc2] - 2026-03-05 in version 1.9.0-rc2 i fixed some bugs and added a new feature. ## added - **GUI Scale:** if enabled, allows you to set any…
5
Release
1.9.0-rc2+1.21.1
neoforge · 1.21.1 · 3mo ago
# [1.9.0-rc2] - 2026-03-05 in version 1.9.0-rc2 i fixed some bugs and added a new feature. ## added - **GUI Scale:** if enabled, allows you to set any…
18

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Download Simplexium

R 1.10-rc1+1.21.11 1.21.11 neoforge 281 KB R 1.10-rc1+1.21.10 1.21.10 neoforge 281 KB R 1.10-rc1+1.21.4 1.21.4 neoforge 281 KB R 1.10-rc1+1.21.1 1.21.1 neoforge 282 KB R 1.9.0+1.21.11 1.21.11 neoforge 276 KB R 1.9.0+1.21.10 1.21.10 neoforge 276 KB R 1.9.0+1.21.4 1.21.4 neoforge 276 KB R 1.9.0+1.21.1 1.21.1 neoforge 276 KB R 1.9.0-rc2+1.21.11 1.21.11 neoforge 280 KB R 1.9.0-rc2+1.21.10 1.21.10 neoforge 280 KB R 1.9.0-rc2+1.21.4 1.21.4 neoforge 280 KB R 1.9.0-rc2+1.21.1 1.21.1 neoforge 280 KB R 1.9.0-rc1+1.21.11 1.21.11 neoforge 268 KB R 1.9.0-rc1+1.21.10 1.21.10 neoforge 268 KB R 1.9.0-rc1+1.21.4 1.21.4 neoforge 267 KB R 1.9.0-rc1+1.21.1 1.21.1 neoforge 268 KB R 1.8.3+1.21.11 1.21.11 neoforge 212 KB R 1.8.3+1.21.10 1.21.10 neoforge 212 KB R 1.8.3+1.21.4 1.21.4 neoforge 212 KB R 1.8.3+1.21.1 1.21.1 neoforge 212 KB R 1.8.2+1.21.11 1.21.11 neoforge 212 KB R 1.8.2+1.21.10 1.21.10 neoforge 212 KB R 1.8.2+1.21.4 1.21.4 neoforge 212 KB R 1.8.2+1.21.1 1.21.1 neoforge 212 KB R 1.8.1+1.21.11 1.21.11 neoforge 211 KB R 1.8.1+1.21.10 1.21.10 neoforge 211 KB R 1.8.1+1.21.4 1.21.4 neoforge 211 KB R 1.8.1+1.21.1 1.21.1 neoforge 212 KB R 1.8.0+1.21.11 1.21.11 neoforge 211 KB R 1.8.0+1.21.10 1.21.10 neoforge 211 KB R 1.8.0+1.21.4 1.21.4 neoforge 211 KB R 1.8.0+1.21.1 1.21.1 neoforge 212 KB R 1.7.1+1.21.11 1.21.11 neoforge 197 KB R 1.7.1+1.21.10 1.21.10 neoforge 197 KB R 1.7.1+1.21.4 1.21.4 neoforge 197 KB R 1.7.1+1.21.1 1.21.1 neoforge 197 KB R 1.7.0+1.21.11 1.21.11 neoforge 197 KB R 1.7.0+1.21.10 1.21.10 neoforge 197 KB R 1.7.0+1.21.4 1.21.4 neoforge 197 KB R 1.7.0+1.21.1 1.21.1 neoforge 197 KB R 1.6.0+1.21.11 1.21.11 neoforge 179 KB R 1.6.0+1.21.10 1.21.10 neoforge 179 KB R 1.6.0+1.21.4 1.21.4 neoforge 179 KB R 1.6.0+1.21.1 1.21.1 neoforge 180 KB R 1.5.4+1.21.11 1.21.11 neoforge 174 KB R 1.5.4+1.21.10 1.21.10 neoforge 174 KB R 1.5.4+1.21.4 1.21.4 neoforge 174 KB R 1.5.4+1.21.1 1.21.1 neoforge 174 KB R 1.5.3+1.21.11 1.21.11 neoforge 174 KB R 1.5.3+1.21.10 1.21.10 neoforge 174 KB

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