Hello, I recently redownloaded this game from myabandonware but I do not think it comes with level 13. Is there a guide on how to get this level installed? I have a decade-and-a-half long unfinished business with this level.

Hello, sorry for such a delayed reply. I have just added a download link for Level 13 under the "Resources" tab. Installation instructions are included with the download in a readme.txt file.

https://www.speedrun.com/ballance/resources/xeuvh