Alright. Can I tell you something? Go onto the GK Discovery page and play any random game from the grab bag section. Low-quality, right? This guide will teach you how to make good maps. (No offense to the maps)
The first tip is MAKE A DEVLOG. This can help you keep track of what you’ve done and what you need to work on. Put anything into your devlog, glitches, ideas, problems, etc. (You don’t need to share it. It could be a google document)
The second tip is to make notes! This is like a devlog but before you even make the actual game. Write down your ideas, goal for the game to achieved, and small little details!
The last tip is to make your thumbnails look better! You can ask people to make a thumbnail here: How to make good Thumbnails for publishing your game!
And that’s pretty much it! I made this on mobile, so I’ll expand on it later.