Does my free account include a world or demo?
No, at this time we do not have a Demo of the engine for the public. Because HeroEngine on the Cloud platform also includes the hosting solution, we must (at this time) limit this to subscribers only. We will be looking into other alternate options at a later time so you can try before you buy.
However, you can join a current team at any time with your free account. Some developers welcome new people to learn about HeroEngine. Feel free to join and say hello on our forums and meet some of the current developers.