VoxelEngine/doc/en/content-packs.md

Content-packs

Every content pack must have an ID following requirements:

• name can consist of Capital letters A-Z, lowercase letters a-z digits 0-9, and underscore '_' signs.
• the first character must not be a digit.
• name length must be in range [2, 24]

Content-pack folder having name same as ID may be created in res/content. Content-pack folder must contain file package.json with following contents:

{
	"id": "pack_id",
	"title": "pack name will be displayed in the content menu",
	"version": "content-pack version - major.minor",
	"creator": "content-pack creator",
	"description": "short description",
	"dependencies": [
		"pack",
		"dependencies"
	]
}

Example:

{
    "id": "doors",
    "title": "DOORS",
    "creator": "MihailRis",
    "version": "1.0",
    "description": "doors test"
}

Content pack picture should be added as icon.png file. Recommended size: 128x128

See res/content/base as an example of content pack structure.