I don't have Adobe Flash Professional, but I would like to use ActionScript 3. Is there a way to create Flash .swf files for games with ActionScript without Adobe Flash?
Is there any software that I can use that not cost any? Freeware?
There's Flash Builder built on Eclipse, FlashDevelop, or IntelliJ.
Apps or libraries can be built with the MXMLC compiler from the Flex SDK, which can be installed to Eclipse as a plugin.
There are also projects such as Haxe, which can compile to the Flash runtime.