Kytale

Kotlin framework for Hytale server plugin development.

Kytale bundles the Kotlin runtime and provides idiomatic DSLs to build plugins, gameplay systems, UI, commands, events, configuration, and more - all with first-class Kotlin support.

View Source and Full Documentation on GitHub

✨ Features

• Kotlin Runtime - stdlib, reflect, coroutines (2.2.0), kotlinx.serialization
• Event DSL - Type-safe event subscriptions with reified generics
• Command DSL - Structured commands with async / coroutine support
• Config DSL - JSON configuration via property delegates
• Scheduler DSL - Coroutine-based task scheduling
• UI DSL - Compile-time UI generation and interactive elements
• Hexweave - Optional helper layer for player events, commands, tasks, ECS systems
• Extensions - Utilities for entities, vectors, velocity, targeting, damage

🛠️ Quick Start

Gradle Setup

Add Kytale to your build.gradle.kts:

plugins {
    kotlin("jvm") version "2.2.0"
    kotlin("plugin.serialization") version "2.2.0"
    id("hytale-mod") version "0.+"
}

repositories {
    mavenCentral()
    maven("https://cursemaven.com")
    maven("https://maven.hytale-modding.info/releases")
}

dependencies {
    compileOnly("curse.maven:kytale-PROJECTID:FILEID")
}

Runtime Dependency

Add Kytale to your manifest.json:

{
  "Dependencies": {
    "AmoAster:Kytale": "*"
  }
}

Example Plugin

class MyPlugin(init: JavaPluginInit) : KotlinPlugin(init) {

    override fun setup() {
        super.setup()

        event<PlayerConnectEvent> { event ->
            logger.info { "Player connected: ${event.playerRef.uuid}" }
        }

        command("greet", "Greet the player") {
            executes { ctx ->
                ctx.sendMessage(Message.raw("Hello!"))
            }
        }
    }
}

📌 Lifecycle

• Constructor - Setup basic state
• setup() - Register events, commands, UI
• start() - Post-initialization
• shutdown() - Cleanup

📘 Learn More

Full documentation, project structure, DSL examples, UI system, and advanced usage are available on GitHub: https://github.com/briarss/Kytale/tree/main

📄 License

MIT License