Paradox Shift is an upcoming FPS / Puzzle / Action indie game about using TIME MANIPULATION to live the same work day over an over to increase productivity!
Ok that's not entirely true, and it's not boring desk work anyway so it's all good.
I get a major Half-Life 1 and Portal vibe from the trailer(s), and upon reading an interview at Hot Blooded Gaming they do indeed mention Portal as one of their inspirations. Which is even more obvious if you watch their Paradox Shift Orientation Trailer. They don't exactly have Cave Johnson, but there's a lot of little easter eggs.