Today only (July 24), the video game-themed novel Double Jump is available free for download for everybody for the author's 40th birthday.
http://www.amazon.com/Double-Jump-Lattice-Worlds-Book-ebook/dp/B00E9BVLAO/ref=sr_1_1?ie=UTF8&qid=1406208684&sr=8-1&keywords=double+jump+glaser
http://www.amazon.com/Double-Jump-Lattice-Worlds-Book-ebook/dp/B00E9BVLAO/ref=sr_1_1?ie=UTF8&qid=1406208684&sr=8-1&keywords=double+jump+glaser