Web Games Focused Around City Building & Resource/Troop Management (MMORT)

There are two that I remember playing quite a bit, but do not remember the names of either of them. They were a very common web-game back in the day. I guess it would be comparable to the Clash of Clans (I've never played it, so take it with a grain of salt)

The concept is basically gathering Wood/Stone/Food to grow your city population to build bigger buildings, and new features like Barracks, Research Centers, City Walls and the like. The one I played most like this was based around Greek civilization... As I'm writing this, I am almost 100% sure it was called Grepolis

The other was quite different from most, and was focused around planet exploration and mining resources like Gas and Crystals from planets to build Bigger ships (cargo, fighting, etc). I tried looking through https://www.f2p.com/ but could not find it on there either. If anyone has any ideas of what it could be, please let me know.

I do plan to start working on creating one of these Browser based MMORT, more so as a programming practice/project for myself. But I do hope people end up playing and enjoying it!