Named for the noise you make when forced to slurp down raw oysters in polite company, Bethesda's "G.E.C.K." (aka a "Garden of Eden Creation Kit," or just "the official editor for Fallout 3") is now available. It slices, it dices, it lets you fuss with landscapes, towns, and locations "writing dialogue, creating characters, weapons, creatures, and more."
Slightly more instantly gratifying than the G.E.C.K. is the G.E.C.K. Wiki, a community site laying claim to 1,014 articles as of this posting. If developer lingo like "NavMesh" and "MultiBound Occlusion" gets you hot and thermonuclear, there's enough material here already to utterly destroy your inter-holiday office productivity.
Oh yeah, for PC only. Sorry Xbox 360 and PS3.
Bets on how long it takes someone to remake the original two games in the series?