Update: I'll add the final post in this thread here for more visibility:

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Hi again,

I need some help testing the demo version of Nanoparticles and was hoping that maybe some of you in the community with an N9 could help me out?

There are some reviews in Nokia Store about the Nanoparticles Free version going straight to the end-of-demo screen after level 1. This should happen after level 10, not level 1, so the reports are worrying. Even more so, I'm unable to reproduce this problem on my own phone, so I could use some help from you to see if you experience the same behaviour with the demo.

You can download the demo here.

The demo uses the same config file as the full version, so issue this command in the terminal before testing the demo if you already have the full version of Nanoparticles installed:
If you could also try to run the game from the terminal to see if the output gives any clues about this bug, I would be very grateful. The command to run from terminal is
After testing, you may issue this command in terminal to get your original settings back:
I'm very grateful if you have the time to help me debug this problem.

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Nanoparticles 2 is out. You can download it for N900, N950, N9 and more now:

Download from Nokia Store

Version 2.0 of Nanoparticles brings in a new party mode with particles that can repel your enemies, enable time dilation and teleport you to new areas of the level. Thanks to the user community here for bringing up these great ideas!

In addition, thanks to the great efforts behind Qt and Necessitas, the game is now available for Android tablets and phones as well, should you wish to try it on your tablet as well:

Download from Android Market

About Nanoparticles

Nanoparticles is a physics based game I have been working on and entered the MeeGo Coding Competition with, where you control a green charge in its quest to avoid the purple ones. The purple charges will destroy the green one upon touch, so you’ll have to keep them away from each other.

Behind the scenes are the laws of physics at work. Coloumb’s law and Newtonian physics predicts the movement of each particle. Of course with some modifications for the sake of entertainment.

You can push around the green charge using the red charges to repel it and the blue charges attract it.

The game is available for Maemo in the Ovi Store as well as Symbian. It will soon be released for MeeGo.

Download it here (Price approx. 1 €)

Open source
Nanoparticles is completely open source, with all components released under the GNU GPLv3. The source code can be browsed and downloaded here.

Nanoparticles is built using Qt in C++, with some parts made in QML. To build the source code on any platform, it should be enough to run “qmake” and “make” – or just install Qt Creator and open the project file from there.

Screenshots







Why does it cost money when it's open source?
Because I wanted to give the commercial way of making open source applications and games a try. I see no reason why something cannot be libre, open source software and have a price tag at the same time. If you don't like this idea, you could still download the source and build that for free. In a way I'm just charging you for the ease of downloading the game from Ovi Store. (In fact, it would probably be easier to download it from Maemo Extras, but I can't put a price tag on it there, so that option got left out...)

I hope you guys enjoy it! And don't hesitate to speak up if you have any comments or suggestions. This is hopefully just the first of many physics based games I'll work on for Maemo and the other Qt-platforms.