Dothraki

The Dothraki alphabet was invented by Carlos and Patrícia Carrion as a way to write the Dothraki language, a constructed language created by David J. Peterson for the television series, Game of Thrones, and based on the invented words and phrases used in George R. R. Martin's series of books entitled A Song of Ice and Fire.

Notable features

Type of writing system: alphabet
Direction of writing: left to right in horizontal lines
Used to write: Dothraki
There are two versions of the alphabet: the ancient and the new alphabets
The four vowels are formed by a basic one (e.g. A) simply turned 3 times by 90º
Pairs of similar sounds (hard/soft) have the same symbol turned by 180º (B-P; Ch-J; D-T; F-V; G-K; Sh-Zh). Other pairs (M-N; L-R) are similar.
The semivowels W and Y have also by turned by 180º
Vertical short strokes indicate palatization (Th, Kh), some other modification (Sh, Zh), further modification (Q)
Long (double) vowels are represented by short vowels symbols + an additional short stroke
There are no number symbols in Dothraki