How do I create my own blocks / items and co in Minecraft?

go
6

I would like to know how I can create my own blocks, items and more in Minecraft? Without Forge.

When I click on the json files, the following message appears:

SyntaxError: JSON.parse: expected property name or '}' at line 1 column 2 of the JSON data

Does anyone know?

ry

There are many tutorials on YouTube, take a look at some, it is probably easier to understand than I'm now putting all of this in text!

go

Not really…

I want to create a new block without overwriting another one. And even without Forge.

go

I know the video, it's with Forge. As mentioned above, without Forge…

ry

Why is that without Forge?

go

I want to understand the structure of the game, Forge does it all in the background.

Is it that complex?

gl

You can add textures instead of replacing them in a texturepack, but i don't know how that works xD

Somehow with a new CustomModelData in any case lol

Otherwise I think it's only possible with mods, so Forge