My bot that finds and tweets about the best-reviewed new games on Steam, constructing miniature 6 second trailers for each: https://twitter.com/playfullyauto

This was an extension of a bot I made years back, that constructed a 6s trailer for every single game on Steam as it's launched (https://twitter.com/microtrailers), which later became part of a thing I did officially at Valve (https://store.steampowered.com/labs).

The @playfullyauto one was my most recent (post Steam Labs) thing, and it's my favorite, because it unearths a bunch of games people like. But I never really spread the word about it.