Its $30.
Copyrights last 75 years to my knowledge.
There is another method, at least for US residents.
Mandatory Deposit, process as follows;
Best Edition/Final copy ( in this case machine readable format, 2 copies ) must be submitted along with a form( name eludes me ), to the library of congress ( (url="http://"http://www.loc.gov")www.loc.gov(/url) for details ), within 3 months of publication( defined: released to the public ).
(url="http://"http://www.copyright.gov/help/faq/mandatory_deposit.html")Manditory Deposit FAQ(/url)
other nation's might have similar programs... :: shrug ::
something to the tune of 'Legal Deposit', 'depot legal' or some such.
Most people won't take the time to contest a notice of copyright unless they have a similar product or are bent on theft. Other than that they simply change a few details and they can coexist anyway. Copyright, in digital matters is really only useful to prevent people from directly distributing your exact work for profit without your consent.
basically you create a freeware game, i download, set up an ecommerce store and sell it for $15 on the otherside of the world.
I've adapted some annoying/quirky habits of using my logo/handle as design elements, randomly distorting the sp eLL' ing of words, plastering copyright notices on things, physically planting the license agreement into the software, and generally simultaneously announcing the release on as many appropriate forums as possible.
Such habits are as much selfPromotion as protection. Always release your games in a well-lit well-populated area.
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... ** Big O..ACTION!**
{ edit : hail plesk }
(This message has been edited by ellrx (edited 12-19-2003).)