, in the US, copyright is secured when the work is created. So you don't need to actually do anything to make the work Copyrighted.
That being said, best practice is probably to include, in a file like LICENSE.txt, a statement like... (snipped for length)
You can use the creative commons license chooser
to pick a license for your work - the one I use as an example is the most permissive one possible.
Thanks - this is actually a good idea that hadn't occurred to me before.
I'm releasing a lot of my stuff under a CC-BY-NC-SA license (Attribution, Non-Commercial derivatives only, all derivatives must Share this license Alike), partially to make it absolutely clear that We Love Fanart.
_________________She's sun and rain: She's fire and ice. A little crazy, but it's nice.Bliss Stage: Love is your weapon!
A sci-fi visual novel about child soldiers coming of age. Kickstarter prerelease here. WIP thread here. Fan thread here.
Beta demo here.