Open Source Geospatial Foundation
MapGuide Open Source is a platform for developing web mapping applications.
Record Flash videos & games while watching or playing them online.
A comprehensive open-source tool to create your own 2-D animated games.
Game Downloader is a tool that helps you download free games.
Falling Block Game 2 is a puzzle game a la Tetris.
Open Dungeons Community
OpenDungeons is an open source, real time strategy game.
Open Game Panel
Open Game Panel is an open-source web based Game server control panel.
Zen Studios ltd.
Pinball FX2 - Star Wars Pinball: The Force Awakens Pack is a 2D pinball game.
Red5 is an Open Source Flash Server written in Java.
AsWing is an Open Source Flash ActionScript GUI framework.
Open-source Flash/Flex remoting gateway that connects RIAs using Adobe software.
De MonsterDebugger is an open source debugger for Adobe Flash, Flex and AIR.
A open-source application for creating usb flash disks' backup copies.
Open Sonic is an open-source game based on the "Sonic the Hedgehog" universe.
Lightspark is an open source LGPLv3 licensed Flash player and browser plugin.
I. De Marchi
WPieces is an open source game based on the Chinese game called Tangram.