the creator of the engine (mexiier) gave the pmp file of the engine on her discord server (idk if i said it correctly, i dont have a so good english)
Viewing post in EngineTest 2 (Xiandus Engine) comments
i reuploaded the engine https://blaztermenosoficial.itch.io/xe2, and also mexiier created another discord server
https://www.youtube.com/post/UgkxlNlXYwJkuwQkwJh7_4iuD3KsMIi9JqMn heres a post that mexiier made about the discord server