
Conium
Conium is a datapack and script framework for modern Minecraft, it provides very diverse features without Java coding, Conium lets you complete your mods only using datapacks.
Screenshots

Über diese Mod
What is Conium
新世代を呼ぶハロー、声はまだ途切れないだろう、
新世界の扉を、ほら叩き続けよう!
Conium is a datapack and script framework for modern Minecraft, it provides very diverse features without Java coding, Conium lets you complete your mods only using the datapacks.
Warning
The full Conium feature is currently as 'on client' mode, the server needs to synchronize the datapacks and scripts to client but are not completed this feature now.
But the Conium scripting system can run on the server side completely, only the bedrock scripting APIs are not available on the server side now.
Requirements
| Requirement | Version | Installs | Notes |
|---|---|---|---|
| Java | 21+ | 21 Or higher | 21 Or higher is ok |
| Minecraft | >=1.21.11 | Need | 1.21.11 or higher can be use |
| Fabric language kotlin | 1.13.5+kotlin.2.2.10!! | Need | Only kotlin 2.2.10 can be use |
| Fabric API | ? | Need | Any version is ok |
Build requirements
Conium has configured whole project, just clone the repository, and reload project then run the gradle task remapJar.
| Requirement | Version | Notes |
|---|---|---|
| Java | 21+ | 21 Or higher |
| Gradle | 8.14.2 | 8.14.2 or higher could be use |
| Kotlin | 2.2.10!! | Only 2.2.10 can be use |
| Fabric loom | 1.13-SNAPSHOT | 1.13-SNAPSHOT or other could be use |
| Minecraft | >=1.21.11 | Only 1.21.11 or higher can be use |
NeoForge
About supporting of NeoForge, currently cannot be completed because the secure jar handler in NeoForge has conflict to kotlin native.
And Conium cannot remove kotlin native because scripting running needs, Conium may try to run script evaluator without NeoForge environment in the future.
Discord server
You can join ours discord server to chat with Conium community!
Data driven
See the Data driven
Conium script APIs
See the Conium scripting.
Bedrock script APIs
Not completed bedrock script APIs supports now, only framework able to run the samples.
Grammars
About TypeScript grammar, supported by structuring-translator: TypeScript supports
The MoLang support also based on structuring-translator but implemented by Conium: MoLang supports
Source Code and Contributions
Conium is built on an event-driven, context-oriented architecture with strong aspect-like capabilities, though it does not use event-sourced state semantics.
The codebase is architecturally complex and extensive. While we continuously improve documentation, navigating the source may still be challenging.
Therefore, we strongly recommend discussing your ideas with the core team before contributing. This ensures alignment with the project’s design and specifications.
Please note that pull requests submitted without prior discussion may be declined. For general inquiries, we encourage you to submit an issue tagged “question.”
Hitokoto
Conium will randomly roll a Hitokoto in console every time launching, the list of Hitokotos receives pull requests, only allow in English and Japanese, don't take other languages, don't accept nonsense sentences.
For the list, see ConiumHitokoto.kt.
Verfügbare Versionen
Conium auf dem Server installieren
Server bestellen
Bestelle einen Minecraft Java Server mit mindestens 3 GB RAM (4 GB empfohlen).
fabric Loader setzen
Wähle im Panel unter "Egg" den fabric-Loader und die passende Minecraft-Version (1.21.11).
Mod installieren
Öffne den Mod-Browser im Dashboard und suche nach "Conium". Klicke "Installieren" – fertig! Alternativ: Lade die .jar via SFTP in den /mods Ordner.
Kompatibilität
Mod-Loader
Minecraft-Versionen
1.21.11, 1.21.8, 1.21.7 (+3 weitere)
Server-seitig
✓ ErforderlichEmpfohlener RAM
4 GB(min. 3 GB)Häufige Fragen
Conium Server crasht beim Start – was tun?
Häufigste Ursache: falsche fabric-Version oder zu wenig RAM. Prüfe im Server-Log (latest.log), ob ein "OutOfMemoryError" oder "Mixin"-Fehler auftritt. Bei Mado Hosting: Stelle sicher, dass mindestens 3 GB RAM zugewiesen sind und der Loader zur Mod-Version passt (1.21.11). Über das Panel kannst du den Loader mit einem Klick wechseln.
Ist Conium mit fabric kompatibel?
Conium unterstützt offiziell fabric für Minecraft 1.21.11, 1.21.8, 1.21.7. Im Mado Dashboard werden inkompatible Loader-Kombinationen automatisch erkannt.
Server laggt mit Conium – wie optimiere ich die Performance?
Empfohlener RAM: 4 GB (+1 GB pro 8 Spieler). Prüfe mit /spark profiler, ob Conium den meisten Tick-Time verbraucht. Häufige Fixes: Server-View-Distance auf 8-10 reduzieren, bei Forge "performant" oder "starlight" als Zusatz-Mod installieren. Bei Mado Hosting läuft dein Server auf NVMe-SSDs mit dedizierten CPU-Kernen für minimale Latenz.
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Modded Server mieten
Installiere Conium mit nur einem Klick auf deinem Server.