@For newbie: Don't forget crack before launching the game (otherwise you will get the "no license" error). By doing one of the following:
Method 1: before installing the game, check the following box:
Method 2: or after installing the game, open the iso file, copy everything in the "RUNE" folder, then paste them to where you installed the game, enjoy ;) (see tutorial image here if you still dont know: https://igg-games.com/how-885614657-to-install-game-and-update.html)
If you need all the official sponsorship and merchandizing,
I remember back in the day they used to "Mini-Fy" games.
Tear all the vids and bad music out, make it half the size.
https://youtu.be/peyPUviCvPo