Throw your detective hat into a pile of rotting fish after that whole Steam winter sale sorta-kinda-not-really alternate reality game? Well, snatch it out. Intrepid sleuths have uncovered evidence of something much larger: a series of symbols and puzzle pieces that span multiple seemingly unrelated games.

Because I am the kind of person who looks at actual subway posters as though they were works of art, last week I picked up a game called Mini Metro, which is basically a puzzle/sim game where you build your own subway system.

Mini Metro is a simple game about trying to design an efficient train system in a rapidly evolving city. It's represented by an basic subway map and you change routes just by dragging your mouse between stops. There's a free alpha that you can play right now!