“thousands of text adventures, text adventure development tools, articles, essays, hint files, walkthroughs, jokes,” etc.
downloads of DOS games published 2001 or later, plus resources for programming your own games
lots of neat articles, mostly about video games but a few about art more generally
how to play sudoku, with lots of strategies for solving the puzzles
manuals, hints, maps, and other documentation regarding infocom's adventure games.
“a blog about odd, lesser-known games and software” from the 80s through early 2000s
“exists to foster ludism, or philosophy as it applies to games and gaming”
the author's own selection of mathematical puzzles, plus links to lots of other math-related sites
basically what it says on the tin; includes some pages about mobile games, card tricks, and other fun activities
has sections about pinball and historical videogames
also in category: toys