Which "the" article do you use if there is no noun?

[DanKieselbach]

There is a video game called "The Long Dark."

Would the article change depending on the word, even without a noun?

[Qiunnn]

I am not sure about your actual question but in the example given 'dark' would be the noun so it would agree with the gender of that

[kwis20171]

I assume he meant "The long dark..." with dark as an adjective.

[Qiunnn]

Dark could not be adjective in that sentence, long is though because it is describing the time duration of the dark, if it had a different noun after it like the long dark alley way then I would agree with you but as it the dark is definitely the noun

[DanKieselbach]

Thanks. Honestly, I didn't even realize dark could be considered a noun.

[Heike333145]

The title is "The long dark". The word "dark" has to be a noun because otherwise the expression would be incomplete (the long dark .. what???).

I would translate it: Das lange Dunkel.
(Which means something like "the long period of darkness").

If "dark" were a adjective, it would have to be followed by a noun, for example: The long dark night.

This would be: Die lange dunkle Nacht.

If the word were the noun "darkness", then I would translate it as "Dunkelheit": Die lange Dunkelheit.

"Die Dunkelheit" is much more common than "das Dunkel". The latter sounds more poetic and mysterious.