Just another in-mod file menu. To add a background, just make an object class called FileSelectBackground. See scripts/objects/FileSelectBackground.lua for an example.

In your mod.json, make sure to set map to "fileselect" and useSaves to false.

map: The map that is loaded into when starting a new file.
music: The music that plays on the menu. Defaults based on the style.
style: Either "DEVICE" or "normal", determines the appearance of the menu. Defaults to "DEVICE".

• No state between save selection and loading (like Deltatraveler)
• Example FileSelectBackground is cut off
• Missing some interactions on the DEVICE style (e.g. threat level)