Screenshots and videos of this game have been bootlegged in many ads for various different cheap mobile phone games (that have nothing to do with the game shown in the pictures), and the game shown in the pictures is obviously for PCs or Macs since it uses a mouse. The PC game shown in the pictures actually looks rather fun, kind of like a better looking version of Banished…
Does anyone know what the name of it is?
This medieval city-building game
game-identification
Best Answer
I think this question has been answered exhaustively throughout the comments: it is footage of fake gameplay of a non-existing game, used as ads to lure in people to play run-of-the-mill casual games.
Reasoning:
Also, as suggested in the other answer, it is quite obviously not Forge of Empires, because the two look completely different (even when considering the footage would come from pre-rendered trailers). As far as I could find similar games, it mostly resembles Foundation, but the architectural style and world scale are the most prominent differences.