@xianc78 there are a lot of reasons why you wouldn't port a game to more platforms and they all have various degrees of validity depending on the project.
Even with the Linux version of my game it has bugs that I just don't know why they happen and don't know how to fix.
But this is also why I have left the game unencrypted. If people want to port it somewhere else and they have the knowledge to do so, with the understanding that it might not perform exactly the same way, they certainly can do that.