PlayN

What PlayN is

PlayN is a free, open-source Java library for building 2D games that can be deployed to desktop computers, browsers, and mobile devices. Developers program against one API and can target Android, iOS, Linux, macOS, the web, and Windows. Graphics options include OpenGL, QuadBatch with built-in shaders, Surface, a 2D scene graph, and a CPU-based Canvas drawing API with text rendering. PlayN also supports music and sound effects, as well as mouse, touch, and keyboard input.

TriplePlay is an additional library built on PlayN. It provides a UI toolkit, tweened and keyframe animation, and particle systems. PlayN’s development resources include an overview, tutorials, demos, Javadocs, release notes, and setup instructions. Its cookbook has recipes for graphics, scene graphs, sound, input, networking, assets, and builds using Maven and IDEs. A physics demo shows JBox2D integration. For community help, the site points developers to a mailing list and Stack Overflow. PlayN is licensed under Apache 2.0 and its listed plan costs nothing. The project provides game-building tutorials and sample games for developers working with the library.

Who it suits

PlayN suits Java developers building 2D games for desktop, browser, and mobile targets from a shared API. It also fits developers looking for tutorials, demos, build guidance, and community support resources.

Getting started

1. Visit the PlayN website.
2. Read the overview and setup instructions.
3. Follow a tutorial or demo to begin building a game.
4. Use the cookbook for graphics, input, assets, or Maven and IDE builds.
5. Ask the community through the mailing list or Stack Overflow if needed.

Verdict

Choose PlayN if you are building a 2D game in Java and want one API for desktop, browser, and mobile deployment. Its graphics, audio, input options, and development materials support game building across those targets. Developers seeking a different kind of software should look elsewhere, since PlayN is a game library.