I recently released a three-level demo of the platform game project I've been working on for a distressingly long time, Crystal Towers 2. The game has been "on its way" for nigh-on three years now, because I kept on going back to add more to the basic idea of the game or redesign it all on the way. (Take note, this is a bad idea.)
The game is a hub-based 2D platformer, where you have to gather items for completing levels and challenges. In this demo you can explore the lower levels of the Music Castle, collect orbs, gems and keys, and gather abilities to eventually defeat the boss through the gold teleport. The game uploads your progress automatically to an online scorecard (if you choose to do so), so that you can share your achievements in the game with other players of the demo.
This demo includes graphics by J Freude, Adam Lobacz, Hayo van Reek, Mike Woolman and possibly others as well - thanks to all of them!
Crystal Towers 2 Demo download page (with more screenshots)Direct link to the demo