Thanks to information provided by bernardfrancois (thank you!), I have released my Unity game competiton entry on Kongregate.

It is kinda like Marble Madness played mostly on ledges in the darkness.

You can try it here:
http://www.kongregate.com/games/Dogstar669/in-the-darkness-i-shall-fall

*** I have fixed the problem with the jerkiness in the web edition. Please don’t review for this compo on the version submitted to Kongregate as I have published some fixes and tweeks to levels on there. The windows version is the one to review.