Steam, parsec altenatives

I was searching for steam alternative apps, and I found app it's name is parsec, it is so lite and very good app, i can play game with other online without having that game in my pc( they give me control to play and watch), that is very good to play modern high games in my old pc. but there r a bad thing in parsec, it is not allowed to linux user to host and broadcasting game, just it's allowed to users linux to be guest, so any one know apps like parsec(lite) and allow to linux users to host a game?