MADS: Nebular: Add detection for Spanish Fan Translation of Rex Nebular (and better detection for all translations)

[LukasThyWalls]

Hello.

Following this issue about Nebular detection, and related to this issue of Phantom Spanish Fan translation.

The thing is in MADS games, the fan translations are not detected because ScummVM is not looking for any file that is changed by the translation.

For Rex Nebular, ​there is a Spanish fan translation, which right now with ScummVM 2026.3.1git31684-g993529e20dc (Sep 13 2026 04:34:49), is detected as the English version, but it works just fine with the translation:

User picked target 'nebular' (engine ID 'mads', game ID 'nebular')...
Running Rex Nebular and the Cosmic Gender Bender (DOS/English)
section1.hag: 6f725eb38660de8af31ec7cdd628d615, 927222 bytes.

In the Spanish Fan Translation, the only files changed are:

GLOBAL.HAG
NEBULAR.EXE
SECTION2.HAG
SECTION3.HAG
SECTION5.HAG
SECTION8.HAG
SECTION9.HAG

It's the same that happens with Phantom, and I suppose with all MADS games, ScummVM it's looking for SECTION1.HAG, and always is gonna find the English version because there is not any dialog there.

So there could be two options:

• Looking for more files. GLOBAL.HAG seems to have always the main bulk of the translation.
• Forget the translations and languages, and detect the games without mentioning language or fanmade, as they seem the games work anyway. Only do something else If there is issues in the future.

Thanks!

[dreammaster]

I think for now, it's fine to leave things as they are, so long as the game detects and runs, there's not as much need for us to explicitly try to work around the existing detections just so the fan translations can be detected. It'd be another matter if they weren't detected at all.