If the game itself doesn't implement some sort of mandatory Steam login or DRM, then it's as easy as finding and running the executable from the downloaded game

If the game itself doesn't implement some sort of mandatory Steam login or DRM, then it's as easy as finding and running the executable from the downloaded game files. https://steamcommunity.com/discussions/forum/1/135511757698553087 https://steamcommunity.com/discussions/forum/1/1355117576985...