Horizon Assembly

Horizon Assembly

Horizon Assembly is a Create-focused industrial survival modpack built around automation, civilization building, exploration, and warfare.

by EstGlory
448 Downloads
0 Followers
neoforgeMC 1.21.1adventuretechnology

About this Modpack

Horizon Assembly blends large-scale industrial engineering with civilisation building, territorial expansion, and mechanical warfare. Powered by the Create ecosystem and a carefully selected collection of automation, optimisation, survival, and infrastructure mods, the pack delivers immersive factory progression alongside player-driven worldbuilding and faction gameplay. Whether you’re constructing sprawling industrial cities, designing advanced logistics networks, manufacturing artillery, or launching aircraft into the skies, Horizon Assembly gives you the tools to shape your own mechanical empire.

Everything is configured for stability, multiplayer scalability, and long-term progression while remaining lightweight and performance-focused. No unnecessary visual overhauls or forced client-side additions are included, allowing players to customize the experience with their own shaders, minimaps, or cosmetic enhancements if desired.

Mods AI Improvements by Built Broken Modding – improves entity AI efficiency and reduces server lag from mob processing Almanac by frikinjay – adds in-game informational utilities and documentation systems AppleSkin by squeek502 – displays hunger and saturation values directly in the HUD Architectury API by architectury – cross-platform API required for multiple mod integrations Backpacked: World of Color by Beast135 – customizable backpack storage and portable inventory expansion Chunky by pop4959 – pre-generates chunks to improve exploration performance and server stability Cloth Config API by shedaniel – provides in-game configuration menus for supported mods Clumps by Jaredlll08 – merges experience orbs together to reduce lag in farms and combat areas Controlling by Jaredlll08 – improves keybind management and conflict detection Corpse by henkelmax – stores player inventories in recoverable corpses after death Create by simibubi – introduces rotational power, automation systems, logistics, and mechanical engineering Create Aeronautics by Simulated Team – expands Create with aircraft construction and aerial transportation systems Create Big Cannons by realRobotix – adds large-scale artillery, ammunition manufacturing, and siege weaponry Create Slice & Dice by possible_triangle – automates food preparation and kitchen processing systems Create: Gunpowder by aspctt – introduces explosive production chains and industrial munitions Create: Rustic Structures by robinfrt – adds naturally generated rustic Create-themed structures throughout the world Create: Structures Arise by SmartStreamLabs – expands world generation with large Create-inspired industrial structures Cull Leaves by Motschen – improves rendering performance by hiding invisible leaf faces Curios API by TheIllusiveC4 – adds accessory and equipment slot support for compatible mods Dynamic FPS by juliand665 – lowers resource usage while the game is unfocused or idle Entity Culling by tr7zw – improves FPS by preventing hidden entities from rendering Farmer’s Delight by vectorwing – expands farming, cooking, crops, and food progression systems FDLib by FINDERFEED – shared dependency library for supported gameplay systems FerriteCore by malte0811 – optimizes memory usage and improves large modpack performance

Available Versions

Horizon Assembly 1.4beta
MC 1.21.1neoforge16 downloads
May 17, 2026
Horizon Assembly 1.3beta
MC 1.21.1neoforge12 downloads
May 12, 2026
Horizon Assembly 1.2alpha
MC 1.21.1neoforge11 downloads
May 11, 2026
Horizon Assembly 1.1alpha
MC 1.21.1neoforge14 downloads
May 10, 2026

How to Set Up a Horizon Assembly Server

1

Order Server

Choose at least 6 GB RAM (8 GB recommended for Horizon Assembly). Based on player count: per 5 players.

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Horizon Assembly" and click "Install". The neoforge loader and Minecraft 1.21.1 are configured automatically.

3

Start Server & Play

Start the server – all mods are loaded automatically. Share the server IP with friends and play together!

Frequently Asked Questions

Horizon Assembly server crashes or won't start – what to do?

Most common causes: insufficient RAM or wrong neoforge loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 8 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.

How much RAM does a Horizon Assembly server really need?

Minimum 6 GB, recommended 8 GB for stable performance. per 5 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €12/month).

Can I add custom mods to Horizon Assembly without conflicts?

Yes, but check compatibility: only use mods for the same loader (neoforge) and same Minecraft version (1.21.1). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.

Horizon Assembly server lagging – performance tips

1) Increase RAM to 8 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.

Rent Horizon Assembly Server

Start your own server with automatic modpack installation.

Recommended RAM:
8 GB(min. 6 GB)
From 12.00 / month
Create Server Now
1-Click Modpack Install
NVMe SSD Storage
DDoS Protection included
Automatic Backups

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Required
Client-side
Required

Supported Versions

1.21.1

Start your Horizon Assembly Server now

From €12.00/month with 8 GB RAM for the best performance.

Configure Server →