Subversion is the next game from indie games innovator Introversion Software and has been in development for a while. The first screenshots and the first concrete info on the game was first revealed earlier this year. However we haven't see the game in action before.

That is, until this week when some demo footage from a London-based indie game event from last June popped up on the interwebs. Now we get to see this tactical action game in, well, action as players enter a security-filled building and attempt to accomplish their mission. It's still a long ways away from being completed but based on the video presentation it's looking like it will be worth it. Hey, they did make Defcon. You can check out the video after the break: