d104

A d104 is a polyhedral die used to generate integers from 1 to 104 in tabletop gaming and probability experiments. It belongs to the family of nonstandard dice that extend beyond the more common d4, d6, d8, d10, d12, d20, and the percentile d100. The die is typically a novelty or specialized tool rather than a core component of most games.

Construction and labeling vary by manufacturer, but a 104-faced die is designed to provide a uniform probability for each face. Most 104-faced dice are produced as a large multi-faced polyhedron and labeled from 1 to 104, with emphasis on legibility and even wear over time. Some designs emphasize readability with larger numerals or color contrasts.

Usage and reception are influenced by the die’s nonstandard status. It is mainly used for homebrew game systems that require a wider range of outcomes or for probability demonstrations. In mainstream tabletop role-playing games, the d104 is rarely needed or supported by official rules, so players often substitute alternative means to obtain a wide numeric range when required.

Availability and variants are limited to specialty game retailers and custom dice makers. As a nonstandard item, it is typically sold individually rather than as part of a standard dice set, and may appear in niche catalogs or online shops. Researchers, educators, and hobbyists sometimes acquire such dice to explore large-sample randomness or to add variety to gaming sessions.

See also: polyhedral dice, d4, d6, d8, d10, d12, d20, d100.