This subseries contains materials related to the development of board games and are arranged alphabetically by title with more generic materials arranged at the end of the subseries. Materials include notes, writings, proposals, outlines, correspondence, rules, graphic design papers (paste-ups, proofs), invoices, scrapbook, articles, advertisements, artwork, blueprints, maps, transparencies, photos, slides, negatives, contact sheets, 3½” floppy disk, Iomega 20 MB cartridge, VHS tape, miniatures, ephemera, and realia.

Floppy disks and one compact disc in this series were imaged in May 2022, and digital files are available upon request for on-site researchers. (Corresponding digital file folders are indicated after each object description; see Series XIV: Digital files from media for additional details.)

Note that Empire Builder editions referenced in this finding aid coincide with the editions listed on Boardgamegeek.com which includes two second editions, one in 1984 and 1988. However, some of the references in the archival documents to editions may count the 1988 second edition as the third edition. Great care was taken to identify materials with the correct edition, but this was subjective.

The board game based on Robert Asprin’s Myth Adventures may have been published as Myth Fortunes, but related records can also be found under the titles of "Mythdirections" and "Myth Adventures". Darwin Bromley, in an interview (in box 203, object 2) states that this game was to be called "Myth Play" or "Myth Chance". The game was originally contracted to and designed by Tom Moldvay in 1988. A later version, which was eventually published in 1990, listed Will Niebling as designer. For additional references to this game, see box 5, folders 1-2.

Catalogs, newsletters, and magazines with mystery game references related to the Ellery Queen’s Mystery Game have been transferred to the library including: Newsweek, April 22, 1985; Sherlock’s Bookshop catalog, catalog #6, 1985; The Mysterious Press catalog, 1985; and The Third Degree (a Mystery Writers of America, Inc. newsletter). Some Ellery Queen’s Mystery Magazine Game materials had been damaged and were photocopied in 2021 to replace the originals. These appear in a few of the folders for this title.