Parallel universes are a recurrent theme for literature and movies, games however aren't that familiar with such concept. You may have seen it used as a narrative resource mainly, not as the core gameplay concept. That's what Dual Reality is about, the constant interaction between two world dimensions and player.
The idea came to me around two years ago, the production begun one year later as a side project because I still was busy with Fistful of Frags. The pace increased progressively, focus always has been the technology behind it and its application into core game mechanics. That means Source engine has been transformed into a "dual reality engine", so it's capable of simulate two separate world dimensions. Each dimension runs its own time, so dual time and dual space are the main features in this game world.
There will be unveiled many details during the upcoming weeks, yet you won't see any of the real levels until the very end probably. Spoiling the puzzles wouldn't be a good idea, so I'll create some simple scenes to showcase interesting stuff. You may find elements which won't appear in the game.
Finally, here's the first video. Perhaps you won't find it very appealing, I actually didn't want to tease you but showing the differences between a "single reality" game and a dual one. So this is a single reality view, nothing to do with the real gameplay, yet interesting to fully understand the concept later.