Tower climbing game with a pinch of puzzle. Smooth wall jumping, screen wrapping from the sides, enemies to watch out for and levers to open stone doors. All shown with nice pixel graphics and accompanied with rocking chiptune music.
Also there's a hint in the trailer, that it's not all about relaxing tower level.
Out on January 18th 2011, freeware, on Windows.
...Which means you can download and play it right now!