Though i am not so technical, but i have seen my tech team uses one of them hope this will helpful to you, No ranking but these all are good to try.
Don’t think that Adapt Learning Project Community is a match for you.
I found some useful links maybe you can find some more on this.
Free and Open Source Authoring Tools for e-Learning – eFront Blog,
The Ultimate List of HTML5 eLearning Authoring Tools – eLearning Industry
You can discuss such topics on worldwide Community for the e-learning enthusiasts .