This game has been Greenlit by the Community!

The community has shown their interest in this game. Valve has reached out to this developer to start moving things toward release on Steam.

Greenlight is being retired. For more information on how to submit games to steam, refer to this blog post.
Demon Core
Third gameplay video added
March 24, 2014 - Apex Games Ltd

This time we want to show you one sequence of game play. This is a level where we have some information of approaching enemy soldiers all over the place and prepare traps to take all of them down!