Problem with RVGL, missing files

[Avecezar]

Try to follow the steps in here and report:

https://re-volt.io/downloads/misc

[VaidX47]

RVGL is only a patch, it generally requires you to own the original game (its data precisely).
You can follow Avecezer's posted link to get the game data.
Or download the full prepacked game in the same (IO) website.