Translating the Muv-Luv Substance trilogy...but ADVRUN sucks T_T halp

[EcchiOujisama]

Since most people have never heard of Muv-Luv Substance, it is a trilogy of doujin games released in 2005 and 2006. https://vndb.org/v32467 They can still be downloaded for free from the official website. https://tnonizyou.ojaru.jp/game/maburabu-gamehontaipage.html

I've had this in the back of my mind as something to rebuild from the ground up as a learning experience for a little while. 4K-ize the CG with Gigapixel-chan, present all 3 as a singular unified title, translate as I build it so it supports English and Japanese, stuff like that. Make it the best it can be. Maybe T no Nijou-senpai will even be amused that someone on the other side of the world cares about his silly little doujin games 20 years later.

The problem is that the games were built in ADVRUN. For some reason it was popular with Japanese doujin developers for a couple years before promptly disappearing forever. If I'm going to be nice about it...ADVRUN pukes buffalo shizz up my fucking asshole. I have had no luck whatsoever making heads or tails on extracting the script/images/music from the archive format this engine uses. I've been through documentation in the SDK and it didn't really help. I'd like to think doing something this simple is in the documentation somewhere and I just missed it. It's free and the last version of the engine is still online. https://buin2gou.com/advrun/

I've asked in a couple places and the responses I got boil down to "those games suck lol don't bother lmao" so I'm hoping for something a little more productive. Anything that gets me moving in the right direction is appreciated.

[leticiel_]

The script files are XOR-ed with key "reotyan100" and compressed with zlib.