As the title says, edit your game page to include the platforms it supports, there is a specified field for it. It's a huge help for us alternative platform peeps. There are 72 games and 30 of those are marked as playable by me (web or mac), 15 unplayable (windows only) and the rest are unmarked. Sure, it's not that big of a deal with such "low" numbers, can quite easily click through all of them, but it's the thought that counts. The site has these nice filters so might as well use them.