Due to the fact we cannot or you can't find a list of users who purchased 10YA on Desura we have opened a thread on our Desura Forum here:
http://www.desura.com/games/10-years-after/forum/board/desura-users-steam-keys
Just comment and make sure your Desura games list can be viewed as public then we will email you Steam Keys on Release.
Stay Safe Afters