Open Source ActionScript Game Development Frameworks

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Hungry Hero is an open source Flash game developed with the Starling Framework, designed as an educational example for developers interested in Stage3D and GPU-accelerated game development. The game demonstrates how to leverage Starling’s features to create smooth, hardware-accelerated 2D experiences while maintaining cross-device compatibility through Adobe AIR and Flash. It showcases core concepts such as handling textures, sprite sheets, parallax backgrounds, and collision detection, providing a clear reference for building interactive games. The project also integrates advanced techniques like object pooling for performance, bitmap fonts for efficient text rendering, and Starling’s particle system extension for visual effects. Though originally built with the iPad 1 and 2 in mind, it can be adapted to multiple devices by adjusting configuration files, emphasizing the principle of “one code, multi-screen.”

A collection of Flash and Flex program samples that demonstrates how to create multimedia applications in Actionscript.

A social racing game with distributed leader boards and open-source tracks.

Alchemic is a ActionScript 3 Game Workframe based on Flixel (flixel.org) by AdamAtomic (adamatomic.com). The intent of this is to help game developers to develop Strategy, TowerDefence and RPG games using Flash as Platform.

Small scripting language with a minimal yet powerful command syntax developed in ActionScript 3. Heavily inspired by Sauerbraten's console language.

Flave is a Flash-based, OOP verlet physics engine developed in AS3 and Flash CS3.

Nameless Engine is an open source game framework for ActionScript/Flex which component-based architecture provides maximum flexibility and extensibility, delivering a rapid development pipeline that can be used in many different games.

This library has a collections of classes which are more often used in Game programming. This is culmination of 2+ yrs experience in game programming. The library includes classes from range of ResourceManager (to load & store assets) to AMF connection package & an Isometric engine. It also has a physics engine, which is not completed yet.

This was a multi-user sprite creation tool.

Trivia Warrior Game Engine is used to power Flex / Actionscript based Trivia Games. By utilizing this Game Engine you can quickly create your own Trivia Game.

A collection of demos, with source code, demonstrating advanced examples of web programming.

Maggie (Multiprocess ActionScript Generic Game Interface Engine) is a library developed in ActionScript 3.0 to create Flash games.