I'm making a game with unity, and i'm planing release the game in steam as FREE. I'm using free assets from unity asset store, and also i'm using free assets models from another sites. I always see if the 3d models are free. I'm no using models like Batman, that have rights from DC. But for example i use a model of door or a stair.
My question is, can i publish my game in steam, or another place, without care about someone someone processing me because i use his 3d models, that is free?