Also the inter-relation of all those parts might change in a month or two into something hardly recognizable from the current version. Like AI War, it's constantly getting updates with new features.
It's side scrolling exploration with an overworld map with random loot rewards in the form of spells kind of like Diablo loot or Borderlands with its guns (although not as ridiculously huge a variety of spells as there are guns in that game, at least, not yet). It's got leveling up, at least at the moment, although the progression system is one of the things that has probably seen the most variation over time. It has broad goals to free a continent from an oppressing overlord, but each continent freed will open a new one with a bigger, badder overlord to fight making the game endless in scope. It's basically best to try out the demo. Like most Arcen games, it takes a long time to explain and mostly consists of saying 'it's not quite like that, it's sort of like this, except...'