One of the Xbox's creepiest games is free right now

If you think video games are all about goofy Italian plumbers and bright, colorful explosions, you're missing out on a whole world of incredible games.

In recent years, there has been a surge of so-called "independent" games - those made by small teams rather than several hundred people at a massive game company - that have pushed the limits of what games can be, challenging our pre-conceived notions about what the medium has to offer.

One of the most innovative of these games is "Limbo," a totally creepy game that originally released in 2010.

As part of Microsoft's E3 celebrations, you can download it for free right now on Xbox One.

Here's what "Limbo" is like: