Hey, not an easy question to answer as we utilize different AI tools. 😅
For images:
Generally we either use a Plug-In which allows the use of ComfyUI inside of Krita, or SD Forge for bulk creation.
Our model is Illustrious-based, but uses a Lora based on my old 1.5 Custom-Merge which was used to create the early versions of the game. All resources we use are posted in the AI-gen-lab on our Discord server if you want to have a closer look.
For music:
All songs were created with Suno | AI Music. Most of the songs were created by Nyx, so I'm no expert there.
Super weird. Try this one, just made it:
https://discord.gg/2Eqb9WYm33
And from where did you try the link? Maybe I have to replace some old ones.