All you have to do in order to download the GECK editor is to head over to the official website and click the downloads button – it’s completely free. Here is why you should do that right away:
“The G.E.C.K. provides the community with tools that will allow players to expand the game any way they wish. Users can create, modify, and edit any data for use with Fallout 3, from building landscapes, towns, and locations to writing dialogue, creating characters, weapons, creatures, and more.”
In other words, this means that, even if you don’t plan on downloading the G.E.C.K. PC editor, you should still keep you Fallout 3 game installed – I estimate that early next year we’ll receive the first super cool mods for the game!