Recommendations and process of uploading trailer for the game on Steam.
New rules from Valve - the trailer must be uploaded, for sending your build to review and publishing your game.
Without trailer - you can’t submit your build to preview and publish your game.
*You need submit your build for review only one times, no one will check every your build.
Steam did not have a strong requirements for application, but the support man will tell you main important bugs, what he saw in your game.
Playlist link: http://bit.ly/steamYT
My game on Steam: http://bit.ly/bibas_adventures
You always can ask your questions on the comments section, or discuss about some themes. Lets help to each other! 😀