As the title reads, this is a basic in-game Level Editor.
It is just to show the principle of how to make one, it’s not a fully developed editor.
You can download here on PasteAll.
There is no Python, so it should be beginner-compatible!
Ability to add 4 different objects.
Play the level you’ve made.
Easy to understand Logic Bricks. (hopefully)
Screenshot of Level Editor:
If you need any help you can leave a comment here.