John Conway's Game of LIfe - A simple Java implementation of Conway's classic game of life. - http://psych.hanover.edu/JavaTest/Play/Life.html
Fair Dice - Contains a complete list of all possible Fair Dice, most of which are not cubes. Includes pictures. - http://www.mathpuzzle.com/Fairdice.htm
Introductory Combinatorial Game Theory - Description and analysis of several impartial and partial (partisan) combinatorial games by Lim Chu Wee. - http://sps.nus.edu.sg/%7elimchuwe/cgt/
Erik Demaine's Combinatorial Games - Research on pushing blocks, Clickomania, Phutball, and sliding coins. Survey paper on algorithmic combinatorial game theory. - http://theory.lcs.mit.edu/~edemaine/games/
Dice Theorem - How many ways are there of throwing n indistinguishable dice each with m faces? - http://www.hermetic.ch/misc/dice/dice1.htm
Jeff Erickson - Mathematical Games, Toys, and Puzzles - Links to several game theorists and actual games, plus a brief introduction. Also a couple of papers on game theory, about Toads and Frogs and Sowing Games. - http://compgeom.cs.uiuc.edu/~jeffe/mathgames.html
Aviezri Fraenkel - A comprehensive bibliography on combinatorial games; several papers about combinatorial games; and information about where to publish such results. - http://www.wisdom.weizmann.ac.il/~fraenkel