Some issues with the save game system have been raised and we're working to resolve them. We've discussed publishing a version of the game early, without the option to save to let people get a feel for the game, but have decided against it for now.
Since the Early Access release will contain only a single map and a (victorious) playthrough of this map will require several hours of playing time even for the very best player, it would not be fair to relase a game where each playing session meant starting over from scratch.
However, we're hoping to have the savegame issues sorted shortly and the planned launch date of August 1 still stands.
/Mathias
