The D'ni alphabet was created for use in the computer games Myst
and Riven, which are produced by Cyan Inc. The D'ni alphabet is used
to write D'ni, a language created for use in Myst and Riven which is
spoken by a number of the characters in these games.
Some of the transliterations and phonetic values are uncertain.
The D'ni use a 25 base counting system. The number 25 can be written
either as a single symbol or as a combination of the symbols for 1 and 0.