Not sure if you looking for this type or not. I've been playing SAGA MMORTS for a little over a year. Started in open beta. They have greatly improved the graphics. Server is stable almost all the time which was huge issue back in beginning ( I quite every Monday after frustrating weekend, lol). You can pvp, pve, have guild wars, duel quest or quest by self. They are coming out with World Conflict (waiting, waiting, waiting). Free to play, but full version to join guild, do raids, etc. I'm mainly sticking with it because I have a good guild going. Gotten some positive response to my Proverbial Principles weekly mailout. You don't have to spend money. You can buy units ingame for resources you produce. Even ones people a paid cash for. The sell via card packs. Second hand retailers sell for cash or resources which is nice since ingame gold, wood, stone don't cost 'real money', which I think was your point. Anway, playsaga.com is the site.
Hope you find the game your looking for.
repfarm
a good name is more desirable than riches
Proverbs 22:1