You have probably done this atleast once. Project hopping is when you get less and less motivated on game because their is another game you want to make. Project hopping usually starts with 1 of these 2 examples. 1. by you not making anything completely new like a new system because you are just making more of something like Weapons or Similar scripts, This makes you feel like you are not making any progress. 2. You played A game of a diffrent Genre and liked that game more then your game so you feel like you are making something Bad or Something you dont like. Both of these reasons make creating a new game that Fixes both of them and will be 100 Times better then your current game Very appealing to you, But dont do it because that New game Idea will not Fix it you will most likely Repeat that mistake again and again and again. There are ways to help with this that help recreate the Happines and Accomplishment that made creating the project so fun at first. 1. Try to set small goals instead of Big goals like Instead of Lets make a Town try thinking Lets make a good House interior, This will help you feel more accomplished with the things you make. 2. Try Challenging yourself by making things that you dont know much about since it will not only teach you how to do it for later but it will also make you feel more accomplished with what you made and figured out. 3. Avoid Scope creep, Scope creep is when a project idea grows bigger and bigger over time, you might start with make a small game with 8 levels and 1 boss but you get an Idea to add and then another Idea and another Idea and you keep adding ideas so know you want the game to have 20 Levels, 10 Bosses, 4 ending, 9 post game levels, 15 minigames and so much more. Scope creep can kill all the motivation you have for something. 4. Get some feedback early, you can get someone else to play the game or put the game on the forum with a demo for people to test. 5. Work on it even when you want to Project hop, This helps you get more motivated on working on it but dont work on it if you are burnt out since that has the opposite effect.
I hope this helps some of you who have been struggling with this. I actually have this proplem aswell and you might have it without realizing it. Also this might not work for everyone. I hope this guide was clear enough to understand since I dont know if I wrote it good enough.