Can I play a preloaded steam game before release?

Answer 1

only a few of them have this option, usually the larger releases will to reduse the stress on the servers

you know the news boxes that steam likes to show us? one of those will show up if a game you preordered has the option to so keep an eye out for it

 

but without a few hunrerd computers to crack the code on the files you cant, sotty