I'm making a fair few games at the moment, and you can see what i'm making at
tdrDESIGN.net for detailed description of all my games currently under development. I'll go through what I plan for my trilogy, The Sandman Chronicles.
First off, the trilogy is essentially an update to Conan the Barbarian, but in space. You play the role of a man, who has watched as his world is attacked and destroyed by an evil conquerer. You are captured and are then forced into physical labour. After proving your worth as a competant fighter, you are sent to train for servitude as part of the personal guard of the sinister Emporer, the same man who murdered you race.
Years go by, and you've not only become a trusted guard, but also, a ruthless assassin and Royal Bounty Hunter, sent to murder those that oppose the Emporer. Your codename is Sandman. Whilst on a Bloodhunt for a monarchial leader from the Outer Worlds, you find that you've been sent to murder a child, and refuse to do so. You return to the Emporer and tortured for your ineptness in your duties. Later, after an attack and slaying of a ranking official and your failure to stop it, you are sentanced to the treacherous pits underneath the Imperial City Acheron of the Inner Sanctum, a manmade dungeon of which there is supposedly no escape. Part One: Reign of Darkness starts here properly (as the opening scenes i've described will have playable bits as it tells you the backstory), as you plan to escape from your cell and ultimately, the prison.
Part Two: Darkness Falls picks up almost immediately after the end of the first game, as you find yourself on the run from a Royal Bounty Hunter (whose ship you will eventually steal and claim as your own), and become an independant Bounty Hunter yourself, whilst you begin planning the downfall of the Emporer. Part Three: Siege of Acheron takes place a few years following your escape and you've become a reluctant leader within a seedy Outer World rebellion, who also plan to overthrow the Emporer using any means neccesary.
As of yet, it will only be a trilogy, but will be open for more games if I ever decide to continue. When they will be made and released is WAY up in the air. I know the story I want back to front, its just that I cannot get motivated to work on the amount of background, and character art/animations that is needed. It originally started off as an AGI game, and then went to SCI, and is now being done with AGS.
BlackMageJawa: One of my friends has been making (at least, to my knowledge he has been), a Metal Gear game in AGS which is supposed to be a point & click adventure game. He seems to have become fanatical about the series, and even last night, was showing me a 3D model he was making that was supposed to be Solidus Snake.
Sebatianos: You might consider trying AGS, as it is both free and easy to use when it comes to coding. Also, graphics do not need to be great when it comes to any freeware adventure game, as could be seen with my first games. Brad Bradson was made within an hour between classes, featured terrible graphics, only one room, no REAL puzzle and just a bizarre ending. Lifeboat has better graphics, yet I still retained the same sort of humour in it which appealed to those that liked my first game... of which there really aren't all that many. Overall, both games have only been downloaded about 1000 times each (Brad Bradson is actually about 2000-3000, but I screwed up the counter and only got it working after it had been released for a few months).
You must remember. As long as it has some good gamplay, then people will like it.