How to set up hot reloading in KorGE?

KorGE has built-in hot reloading; use gradle tasks like `./gradlew :korge-sandbox:runJvm` from the README to run the application and make code changes to see them instantly without restarting.

KorGE vs LibGDX for Kotlin games?

KorGE is fully Kotlin-native with multiplatform support out of the box, while LibGDX is Java-based with Kotlin extensions. KorGE offers better integration with modern Kotlin features but has a smaller ecosystem and community.

Does KorGE support 3D game development?

KorGE is primarily focused on 2D and multimedia development; while it may handle basic 3D via Korlibs, it lacks the advanced 3D tools and rendering engines of dedicated 3D game engines like Unity or Unreal.

What platforms can I deploy a KorGE game to?

KorGE targets JVM for Android, JS & WASM for web, native code for iOS, and JVM/JS for Desktop, as per the README. However, it does not natively support consoles or some niche platforms without custom work.

How to debug games in KorGE with IntelliJ?

KorGE integrates with IntelliJ IDEA for live debugging; run your game via gradle tasks and use the IDE's debugger tools to inspect variables and step through code, as mentioned in the debugger feature.

Is KorGE good for multiplayer online games?

KorGE provides basic networking via Korlibs, but it lacks built-in, high-performance multiplayer frameworks; developers may need to implement custom solutions or rely on third-party libraries for complex online features.

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KorGE

NOASSERTIONKotlinv6.0.0

A modern multiplatform game engine for Kotlin, enabling game development for JVM, JS, WASM, iOS, and Desktop.

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3.1k stars148 forks0 contributors

What is KorGE?

KorGE is a modern multiplatform game engine built entirely in Kotlin, designed to simplify game development across multiple platforms like Android, Web, iOS, and Desktop. It provides features such as hot reloading, debugging, and a small footprint, enabling developers to create games efficiently with a single codebase.

Target Audience

Game developers and Kotlin enthusiasts looking to build cross-platform games without managing multiple codebases, particularly those targeting mobile, web, and desktop environments.

Value Proposition

Developers choose KorGE for its seamless integration with Kotlin Multiplatform, hot reloading for rapid iteration, and lightweight design with no external dependencies, making it a productive and modern alternative to other game engines.

Overview

Korge is a Multiplatform Game Engine written in Kotlin for JVM, Web, Android and iOS.

Use Cases

Best For

Developing 2D games for Android and iOS with shared Kotlin code
Creating web-based games using JavaScript or WebAssembly
Rapid prototyping and iteration with hot reloading support
Building cross-platform desktop games with JVM or JS targets
Educational projects or hobbyist game development in Kotlin
Leveraging Kotlin Multiplatform for game logic reuse

Not Ideal For

Projects requiring advanced 3D graphics and physics engines with built-in tooling
Teams needing extensive third-party plugins or asset stores like Unity Asset Store
Games targeting consoles (e.g., PlayStation, Xbox) not listed in supported platforms

Pros & Cons

Pros

Instant Hot Reloading

KorGE supports hot reloading, allowing developers to see changes immediately without restarting the application, which speeds up iteration and testing as highlighted in the README.

Seamless Multiplatform Deployment

It uses Kotlin Multiplatform to target JVM for Android, JS & WASM for web, and native code for iOS and Desktop, enabling a single codebase for multiple platforms as specified in the features.

Kotlin-First Design

Fully written in Kotlin, it embraces modern coding styles and integrates with IntelliJ IDEA for debugging, making development productive for Kotlin enthusiasts, as noted in the README.

Minimal Dependencies

Has a small footprint with no external dependencies, using only platform-available libraries, which reduces bloat and simplifies deployment, as emphasized in the key features.

Cons

Ecosystem Fragmentation

Extensions are managed via a separate KorGE Store, which can complicate dependency management and discovery compared to integrated solutions, as mentioned in the README about KProject support.

Limited High-End Features

Focuses on lightweight multimedia; may lack built-in support for advanced 3D rendering, complex physics, or real-time networking features found in larger engines, inferred from the small footprint emphasis.

Community and Resource Scarcity

As a smaller project, it has a limited community, fewer tutorials, and less third-party support, which can hinder problem-solving and learning compared to mainstream engines.

Frequently Asked Questions

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