Hi Duffer! Sorry about the reply delay!
Due to team delays and some pretty nasty personal life crises, we've had to push the release date back until the end of January, MAYBE early February

life sometimes likes to throw curve-balls unfortunately.
The pre-purchases work either via being one of the Kickstarter pledgers, in which case you'll get access to the beta on Christmas eve (not a finished game, but perfectly playable) via a direct download from our private servers, or, you can pre-order the game on our main website:
www.malevolencegame.com
As for the saved games, we're going to do our best to make sure that you can, however, betas being betas, I wouldn't get TOO attached to your beta character, just in case