"City Spawn" typically refers to the —the specific location on a map where a player or entity first appears in a video game. Because "City Spawn" is a broad term used across many titles, a "proper report" depends on which game you are playing.
Building Spawn Points 1.0 Mod Tutorial Cities: Skylines Tutorial
: The game uses "bias" logic; for example, Scythia has a bias toward horses, increasing the chance they spawn near them.
: While "Legendary Starts" are popular, a city's growth is more dependent on settling near fresh water (rivers/lakes) for housing and high-yield tiles (food and production) than the exact initial tile.