Okay!!! Here's a way to make money with your games!
First, you must be at least 18 and have experience making games! I suggest you make great freeware games first! If you have made a free game with over 50,000 downloads, you could probably be successful selling games too!
Second, make a great game! Not just great by Game Maker standards, but a polished game that can compete with the games on sites like http://manifestogames.com!
Third, give your game a website and set up an e-commerce provider like Plimus, BMT-Micro, or eSellerate! They take around 10% of the sale price and in exchange do digital download, credit card transactions, and even mail you a check each month!
Fourth, market!!! There are many ways of marketing, like press releases, offering review copies to reviewers, advertising, forum posts, and hundreds more, use whichever work for your game!
Fifth, constantly learn from others who create also shareware games! A great site to learn from is http://indiegamer.com! Read almost everything on that forum, and ask questions when you're confused!
(EDIT: I actually meant to place this in the distribution forum, feel free to move it there, moderators. Sorry for the mistake. Although it's also sort of a comment to the community about the flood of uninformed topics about making money with games in that forum )
(EDIT 2: Here's a real guide I wrote up, rather than a joke guide: http://studioeres.co...games-shareware)
(EDIT 3: As Tarik points out, keep in mind this was the work of a team, over a 6-month period, and probably less than minimum wage would have earned. There are people who make a living at this, but you will probably not make a living at it for your first game. I don't think anyone actually would, but just as a precautionary warning, don't quit your day job and decide to make money through Game Maker exclusively or anything.)
Edited by rinkuhero, 29 November 2008 - 07:03 PM.