RoboB0b did a fantastic job with the game, as did the spiters and soundtrack musicians. It's been one hell of a project and I can understand if he's simply become burnt out and maybe wants to forget about the responsibilities and burden of such a task. I get where he's coming from and thensome.
That being said, I'd love to see Gnomoria going open-source, and I'd love to know how RoboB0b would feel about making the game opensource, or even selling the source code to an interested party. The question painfully remains- has anyone even seen him since Feb/April?