Cipher methods Symbols
Tenctonese (Alien Nation)
Tenctonese is the fictional language of the Tenctonese (also called Newcomers), alien people from the sci-fi franchise Alien Nation created by Rockne S. O’Bannon. The franchise includes the 1988 film (with James Caan and Mandy Patinkin), the Fox TV series 1989-1990 (22 episodes) and five sequel TV movies between 1994 and 1997.
The Tenctonese are former genetically-engineered slaves whose ship crash-landed near Los Angeles in 1991 (fictionally). The film and series explore their integration via a metaphor for American race relations, in the Star Trek tradition. The alphabet was designed by the production team with an angular geometric style reminiscent of Mesopotamian seals, and appears on billboards, uniforms and official Tenctonese documents in the show. 26 Latin letters + 10 digits.
How does the alphabet work?
The cipher relies on a monoalphabetic substitution: each cleartext character (letter or digit) is replaced by the corresponding Tenctonese glyph. Same mechanic as the Caesar cipher (~50 BC) — a 1↔1 table — except the “key” is an image table from a cult 80s-90s TV universe.
The table holds 36 glyphs (26 letters + 10 digits). The glyphs are deliberately angular — consistent with the film’s alien iconography and the Tenctonese people’s slave-era past (marks engraved with a chisel on their ships).
Cryptographic strength: low. Monoalphabetic substitution → trivial frequency analysis. The interest is cultural: it’s the alphabet of an important sci-fi work about immigration, long forgotten but rediscovered since the Syfy reboot Resident Alien.
Historical and modern usage
- Alien Nation film (1988) — billboards, documents, uniforms.
- Alien Nation Fox series (1989-90) — weekly episodes.
- Alien Nation community — fan art, cosplay, conventions.
- Sociological pedagogy — metaphor for race relations.
Related variants
- Aurebesh — see our entry, another sci-fi alphabet (Star Wars).
- Klingon pIqaD — see our entry, another cult TV alphabet.
- Covenant (Halo) — see our entry, comparable angular alphabet.
What are the weaknesses?
- Monoalphabetic substitution — frequency analysis is immediate.
- Public table — available on dCode and Alien Nation wikis.
- Close-looking angular glyphs — possible confusion between some pairs.
The 36 glyphs
