@KingArtGames Just found out about the demo today, 1 day too late. What's the thinking behind doing limited time demos? Are you worried people will be content just replaying it forever and won't buy the game? Just leave the demo up, it hurts no one.
The Demo was a special thing for the Steam summer festival and it concluded when that did. Seeing as the Demo was everything apart from the campaign it would be fairly bad to our success and internal servers to leave it up. Sorry you miss out.