
Spectrum Compat
Integrates Spectrum mechanics into other mods
Screenshots

About this Mod
Spectrum Compat
A compatibility mod that bridges Spectrum with The Aether, Deep Aether, VanillaBackport, Copper Age Backport and Better Archeology.
How it works
Heads are real registered block-items tagged into #c:skulls, plus per-mob loot-modifier and recipe entries that plug into Spectrum's existing systems. A small set of mixins covers the cases where data alone isn't enough. Every integration is gated by mod-loaded conditions, so any combination of optional mods works out of the box.
Textures are referenced from the source mods' jars at runtime; this mod ships zero texture bytes (required by The Aether's license).
Supported mods
| Mod | What's added |
|---|---|
| The Aether | 19 mob heads (incl. 3 Moa colours), anvil-crushing dye recipes for Aether flowers |
| Deep Aether | 11 mob heads (incl. 7 Quail variants), anvil-crushing dye recipes for DA flowers |
| VanillaBackport | Happy Ghast head, warm/cold Chicken/Cow/Pig heads (memory variant-lock), anvil-crushing dyes for VB flowers |
| Copper Age Backport | 8 Copper Golem heads (4 oxidation × waxed/unwaxed), honeycomb wax recipes |
| Better Archeology | Enchanter recipes for penetrating_strike, tunneling, soaring_winds; disarming exclusive-set |
Variant heads (Moa, Quail, Copper Golem, Chicken/Cow/Pig) are NBT-filtered, so the right variant drops from the right kill rather than rolling randomly.
A few mobs are deliberately skipped because they're either unkillable upstream (Whirlwinds, Gentle Wind, Slider, Creaking) or practically unreachable in survival (Windflies — no biome spawner entries). Bosses are excluded by Spectrum's own #c:bosses blacklist chain.
Requirements
- Minecraft 1.21.1
- NeoForge 21.1.226+
- Spectrum 1.11+
- Any combination of the optional source mods listed above
Credits
Based on Spectrum, The Aether, Deep Aether, VanillaBackport, Copper Age Backport and Better Archeology. This mod is purely a compatibility layer; all gameplay systems and assets it hooks into are the work of those teams.
Available Versions
How to Install Spectrum Compat on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Spectrum Compat". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Spectrum Compat server crashes on startup – what to do?
Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Spectrum Compat compatible with neoforge?
Spectrum Compat officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Spectrum Compat – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Spectrum Compat consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Spectrum Compat with just one click on your server.