In the next week or so we’ll be switching from collecting contributions through PayPal over to a formal pre-order system powered by the Humble Bundle Store. Once this happens you’ll only be able to purchase the game by itself for $30, or the game plus strategy guide and designer notes for $35 so anyone that hasn’t yet contributed but wants the $5 early-bird discount should do so soon!
Speaking of which...
At the Gates will be delivered to those who have already contributed through Kickstarter and PayPal with the help of those great folks over at Humble Bundle. A good example is Grim Dawn, another project that was funded through Kickstarter. The awesome folks over at Humble build a database and handle all of the logistics of hosting the game, offering a location for people to download it, and a way to easily send purchasers the info they need.
When the game is ready, everyone will be sent a URL to a custom page that includes links to the download, the Steam key and any other associated goodies you’ll receive as part of your contribution/purchase (e.g. the strategy guide and designer notes). You can also create an account with Humble Bundle to manage all of your games purchased through their store, instead of having to keep that original email in a safe place until the end of time.
Needless to say, this is much better than me sending out a few thousand keys by email manually!