You know how in fantasy worlds, its all english? Kinda breaks the immersion a bit. I wanna find something where they make it as realistic as possible, and make everything in a fictional language, basically using subtitles as the main way to understand the plot.
Lol the sims, which also is a completely learnable language.
But no, probably other better ones listed here.
Some of the DVD/Blu-ray versions of “GalaxyQuest” have the entire movie dubbed into the weird screeching alien language as a quirky bonus feature.
Thermian. One of the all-time greatest gags we lose in the streaming era.
Chants of Sannaar is a puzzle game where all of the text is written in a new language
There are plenty of things in “Dutch”, a fictional language based on the Netherlands.
It’s a real language, it’s just German spoken by a person with a head injury /s
Far Cry Primal is completely in the fictional We ja language.
Star Trek will occasionally throw out the full speech Klingon, but they are usually subtitled…
Some notable language-based games:
- Tunic
- Chants of Sennaar
- Heaven’s Vault
- I Mother (not released yet)
Spoilers about Tunic's language
The writing in the game is actually an alternate way to write English phonetically/phonemically. So the game technically is in English but you can’t understand it. There are guides on how to read it, but it always seemed like too much effort for me so I never did.
You haven’t experienced Shakespeare properly, until you’ve heard it in its original Klingon! /s
Some people stuggle to learn a second language their entire lives. These badasses did it for a gig!
The Gollum game has a paid DLC for Sindarin (Elvish), though the game is pretty horrible.
Sigur Ros is a band that sings in a fictional language, I’m pretty sure. Not totally what you’re asking for but certainly in the spirit
WallE?
There is a language In Final Fantasy X you don’t understand at first, but you learn new words as you talk to the people who speak it and then understand them more and more.
Technically it’s a cipher, BUT it’s also perfectly constructed to work as a language (by making the cipher easier - vowels only get replaced with vowels, consonants with consonants).
It’s not fully the type of answer you want, but there is an Italian book called “the revolution of the moon” that is 90% written in dialect. The first pages are mostly Italian with some words in Sicilian dialect, then the dialect part gets more and more prevalent until it’s only dialect.
It’s not exactly what you mean in the sense that the Sicilian dialect really exists and that the book clearly exploits the similarities between the dialect and Italian for the reader to understand.
To stray even further from OP’s question (because books), I loved the dialect in Riddley Walker and the slang in A Clockwork Orange.
Not video, but many Asterix comics get released in Latin and regional dialects.
Also, I liked how in Enemy Mine they both learn each others language instead of the Alien just learning English.
Stray uses its own language. Your robot friend just translates it for you.











