> Both games have graphics; you could substitute user graphics with the same semiotics, for the same objects into Morrowind, while retaining the same game feel, just like they did in OpenTTD.
And not only this, there are various graphical user mods to do just that, which someone bundles up into a modpack every few years
Isn't that an apples-to-oranges comparison?
Both games have graphics; you could substitute user graphics with the same semiotics, for the same objects into Morrowind, while retaining the same game feel, just like they did in OpenTTD.
Morrowind does additionally have scripted scenario dialogue and descriptive text. But you're picturing the wrong thing if you're picturing a need to substitute entirely custom scenarios. Instead, picture "paraphrasing to avoid copyright." Plagiarism isn't illegal; only literally republishing the text of another copyrighted work is. A hypothetical open-source Morrowind project could convey the same scenario with merely different prose — the same as they could convery the same object assets with merely different artistic direction.