Mature and reasoned reactions aren't the name of the game, it seems, and the game in question is actually DarkBase 01.
As discussed on this here Reddit thread, it looks very much like DarkBase 01's developer Solar Storm Studio has abandoned its game following user criticisms.
Tell you what, have a look at DarkBase 01 and make up your own mind as to whether it's something you'd like a go on or not:
The game has disappeared from Steam, and its official site has been replaced with a message saying 'Nothing to see here, go away'. The original Greenlight post, however, has not been removed - I’d guess it can’t be. Seems like a thoroughly fair and balanced reaction, all things considered. Ahem.
Update at 14:30: an earlier version of this article mistakenly claimed that people had paid for DarkBase 01 through Greenlight. This has now been corrected.