I've only put a few hours into this game, but can already tell there's a mountain of possibilities here. Definitely BUY this, support the developers and follow it closely!
If you like classic RTS games like Settlers, Majesty or the Anno series, this is a very well-produced hybrid of those in progress. You build a city, manage resource production / distribution, train a military and fight off monsters / other cities. There's also a roguelike, sandbox element in that your city exists on an overworld map with other cities who will trade with you, invade you, or be subject to invasions/raids.
Though it's not complete yet, it's clear that the developers have done a good, solid job of building the engine and foundations -- that is to say, from here it seems like a lot of the groundwork has been done and the rest will simply be adding content and features.
Features I would like to see implemented in the future:
- Greater varience of buildings/skins, or random rotations (at present there is only one "look" for houses, for example, which can make blocks of houses which you need lots of, look somewhat bland or boring)
- More supply/demand dynamic for trading. Resources often have a relatively set cost that hardly deviates at all. I would like to see something implemented where resources will fluctuate more heavily in price, even between other cities. It makes trading more exciting/dynamic, as currently if two other cities want to buy your resource, they will both largely offer an identical price. I would like to see this fluctuate, so that a player would have to pay attention to trading -- and could even mean that a player running a "trading village" could be economically viable, as buying resources low from certain cities and selling high to others at a profit could potentially work.
- More permanent overworld map changes as the game progresses. i.e. other cities going to war and "taking over" rivals, which would in essence form small "kingdoms" (say, a certain NPC city will then own 2 or 3 cities). Also perhaps something like "invasions" of other cities from monsters, so that cities would become "monster citadels" or "lairs" if they are taken over.
- More military options (siege weapons, different units (perhaps using shields and swords as resources as well))
- Better "fortification" options. Right now there are stone walls and stone gatehouses, but only wooden stockades and no wooden gatehouses. This would be a valuable addition.
- More monsters, though I think the devs have already mentioned wanting to do this. Goblins, orcs, dragons, etc. etc. etc.
Overall though, great game, one of my most favourite in recent memory, and I can't wait until the content starts being more fully fleshed out. There's so much potential here.