A few years ago, Infinite Fall ran a (very, very successful) Kickstarter campaign for a game called Night In The Woods. Like many Kickstarter games, it took much longer to come out than they first promised.
In an attempt to allay some frustration, Infinite Fall put out a few short auxiliary games to let folks know that, yes, they were working on something and that, yes, it would be worth the wait.
Since then, Night in the Woods has come out (and it's good! I think! I'm going to write more about it later!), but it's one of those short auxiliary games--Lost Constellation--that stands up completely on its own.