I have been debating this back and forth in my mind for several months. I have finally reached a decision. I will not be releasing the source code for Chicken Invaders 1, or any of my games, ever.
Just search for “Chicken Invaders” on Google Play. Look at all the copycat derivative games, the games “inspired” by Chicken Invaders, the games infringing on the Chicken Invaders copyright by using stolen graphics and sounds, the games even using the Chicken Invaders trademarked name. And that is after all the games I’ve taken down by filing for a trademark or copyright infringement claim.
Any source code I release would eventually be used to unlawfully create yet another unauthorized game, and I will be powerless to do anything about it.
I know some people would make good use of this source code, but the rest of humanity regrettably sucks. So, no.