This game is a Turn-Based Strategy, "isometric-view-angle" (or "god's view") game.
You the players are in charge of an entire species as well as civilization, while commanding from a Hero/Dragon/Eldrith/KingMage avatar. So you are one person that can interact with the world, just like the heroes you can hire to work for you.
Much more than that, you also have to take charge of the development of your people, in three main ways;
1. Growing cities with buildings and extras
2. Hiring/Summoning small groups of various fighting units
3. Managing all the income and expenses
As a sidedish you also have access to some very limited diplomacy actions, as well as research in loads of magical tomes, and magical equipment for your Heroes.
So, all in all it is a massively complex chessgame...well the combat screen, when units have to face off, is one of the most complex parts of the game. It will take you some time, but eventually you'll have a second sense of how to move your troops around.
I am reluctant to ever give a 5 star review, because I couldn't possibly say; "The Best Game EVER!"...because "ever" is a looooong time. There are also a bunch of detractors, which have possibly been illuminated by others, but one of The biggest problems, must have been launching the game without it being finished, and then adding the actual game later on as Down-Loadable-Content, which you have to pay for.
There are many small things in the few "reviews" already posted here, although none of them seem to me, as a "broken game" or "not worth playing". Most of the things listed as problems, are solvable and quite easily in my mind. Which is where MODS come into the picture, because as always this company really appreciates what other creators can come up with.