Cipher methods Symbols
Alien Alphabet (Futurama)
The Futurama alien alphabet (officially Alienese 1) is one of the two decorative scripts introduced by Matt Groening in the animated series Futurama (Fox Television Animation, 1999-2013, revived by Hulu in 2023). Designed as an Easter egg for observant fans, it appears on billboards, computer screens, newspapers and various background inscriptions of New New York in the 31st century.
The A-Z + 0-9 table was rebuilt by the Reddit / Usenet community from the very first season, episode by episode. A more complex Alienese 2 (an additive alphabet where each glyph encodes the sum of several letters) was introduced from season 2 onward — not the one implemented here.
How does the alphabet work?
The cipher uses a monoalphabetic substitution: every letter of the plaintext is replaced by a glyph drawn from a fixed correspondence table. It is one of the oldest cryptographic techniques on record — already described in antiquity (Caesar cipher, ~50 BC) — and the most directly readable family for a beginner.
The table has 26 glyphs for the Latin letters + 10 glyphs for digits 0-9, i.e. 36 symbols in total. To encrypt, read the text character by character and replace each letter (and digit) with its glyph; to decrypt, consult the same table the other way around.
Cryptographic strength: weak. Because every plaintext letter always maps to the same glyph, the cipher falls to a frequency analysis in a few dozen words (in both English and French, E remains the most common letter, an immediate entry point). Monoalphabetic substitutions are therefore used today for their decorative, playful or pedagogical value — not to protect real information.
Historical and modern usage
- Futurama (1999-2013, 2023-) — on signs, ships, screens, Slurm cans.
- Fan community — used in cosplay, fan-con puzzles, hardcore-fan tattoos.
- Pedagogy — a good example of steganographic cipher hidden in fiction: it works as an Easter egg without blocking show comprehension.
Related variants
- Alienese 2 — additive alphabet (glyphs encode letter sums), not implemented here.
- Standard Galactic — another pop-culture alphabet popularised by Minecraft (see our entry).
What are the weaknesses?
- Monoalphabetic substitution — immediate frequency analysis.
- Documented alphabet — public decoding on the Futurama wiki, dCode, Wikipedia.
- Moderate visual density — glyphs are stylised yet legible, well suited to decorative work.
The 26 glyphs
The 10 digits
