We just released CopperCube in version 4, the editor for creating 3D games and apps. It now includes the possibility to also generate Android apps, and has Particle System support.
It currently can create Windows .exe, Mac OS X .app, Flash .swf and WebGL .html apps, and with the just released version it also now creates Androids .apks.
Its website is here: http://www.ambiera.com/coppercube/index.html. Any feedback welcome!