Shameless self-promotion for my Empire:
We're short 10 people for creating a Tsardom. The game combines a lot of different genres. The biggest is city building, obviously, allowing a lot of creative freedom while you work to make your domain economically successful. Each tile on the map is built individually with workers that you train to work for you. There are dozens of different professions and military units. Hundreds of different types of goods to produce, with viability depending on what natural resources you have available, including a real-life timescale on the seasons, leading to large opportunities for seasonal crops and goods.
Create armies to conquer the world... (Good luck with that as the old empires jealously guard their borders and ancient prerogatives.)
Participate in very dodgy secret orders...
Feasts where you might find be able to make the connections you need to claw your way up from the rank of lord to emperor...
Or end up writing about events, waaaay too much...
Anyway, if you managed to make it this far, the game has a lot of RP in-game, but a lot of the politics between the Empires/Kingdoms etc occurs on discord.
Here's ours: https://discord.gg/eshSDce
And the game: https://www.landsoflords.com/