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FastJ

The open-source, 2D Java game engine.

Easy to Use

FastJ was designed with ease of use in mind. With simple syntax, a plethora of documentation, and lots of helpful tutorials, you'll never be left in the dark.

Lightweight Where it Counts

FastJ is under 10MB in total size, and uses as few dependencies as possible. You can focus on your content -- we won't get in your way with bloat.

Cross-Platform

FastJ fully supports Windows, macOS, and Linux. Targeting multiple platforms is a breeze with Github Actions and jpackage.