The listing, Steam games has ended.
** Stream Games Only works for TWITCH.tv Streamers **
Stream Games is a set of mini games that Twitch Streamers can play with their viewers' interaction
As a Streamer, you can connect Stream Games to the chat
of your channel and allow your viewers to participate in mini-games to
earn points.
You can enter the commands that the bot of your channel uses to add
points to the viewers, if it use any. That way, your viewers will get
points when winning the games.
Multiplayer and interaction only works through a channel chat from
Twitch (twitch.tv)