Another approach that might work for some people is to quickly build a “block” prototype game. Basically the complete game but using boxes and quick prototype b

Another approach that might work for some people is to quickly build a “block” prototype game. Basically the complete game but using boxes and quick prototype box levels to make a “completely finished” game that is ugly and unsellable but playable. You can then iterate step by step improving the things that sucks the most, playing the game as it improves. The huge advantage is that you will be playing the game right away and have years to refine the gameplay and come up with better ideas. And if the game is fun to play, even with ugly boxes, you know the final game will be great. It’s a great motivator.