Adventure Game Studio (AGS for short) allows you to create your own point-and-click adventure games, similar to the early 90's Sierra and Lucasarts adventures. It consists of an easy-to-use development environment, and run-time engine.

The game interface is fully customizable, although the classic Sierra interface is supported by default. You need no programming experience to make a game using AGS - setting most game options is just a matter of point-and-click (though scripting is of course available if you prefer). AGS manages most of the game so that you don't have to - it provides load/save game functions, inventory management, and more.

Add in some interactions (ie. what happens when the player clicks on various things) and you're done. You can even create a standalone EXE file containing your entire game, which you can then distribute.

Please note that AGS is not for everyone. To make more advanced parts of a game, such as cutscenes, you will need to be prepared to learn the scripting language. It is recommended that you have at least a basic knowledge of computers before attempting to use AGS - such as, you know what a PCX file is, you can think logically and you know the difference between your hard drive and your RAM.