I was wondering if it was possible to make a level editor in game for saving. So like people could make their own editors and post them. Like the mario maker level editing thingy but 1000000 times worse.
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Yes, it is possible to make a level editor. There are multiple tutorials online the teach how to do this. For example:
construct.net/en/tutorials/level-editor-construct-2280
The video will help you with the basics. I hope it helps.