Alright, alright, I know early access games are often questionable (personally, not a fan of the concept), but hey - for the low low price of free, what could go wrong?
A brief description from the store page: "This exploration game has 3 main characters: a business man, an old man and a child. They find themselves on a road which is apparently the same, but changes upon their perception of reality".
The reviews say it's only a few minutes long, but many more levels, trading cards and achievements etc. are to be added in the future (and, at least presumably, you'll get access to them for free - we're playing the long game here). Apparently it's headed for Oculus Rift as well.