runouw.com

http://nplusplus.org/

Steam wrote:N++ is a fast-paced, momentum-based platformer about darting around obstacles, narrowly evading enemies and collecting gold in a beautiful minimalist landscape.

(The launch trailer is really well-made, watch it.)

Sequel to N+, sequel to N: The Way Of The Ninja. Just released on Steam a few days ago. I bought it and I've been playing it, it's some really good stuff--there's probably weeks of vanilla content alone, plus more with custom levels. I made this thread both for general discussion and because of the aforementioned level editor with sharing capabilities, which I thought might interest some people here.

Oh man I remember playing the original version a lot. Definitely a fun game, might have to consider picking it up.