I reckon Planetary Annihilation has been a huge success for Uber

No, that killed the developer.

It also reviewed badly according to Wikipedia. And they weren't making money.

http://en.wikipedia.org/wiki/Cavedog_Entertainment

Mmmm... something isn't right with the graph. According to it, since PA was consistently in the top 100 for 6 months it should hace sold 3 million copies at the very least. But Steam Charts show that at its highest, less than 5k players have played it at the same time. It doesn't make sense than 1% of its player base have connected at the same time to play it.

http://steamcharts.com/app/233250

Edit: Added Steam Chart link