This Dev made $5MIL because of this!

A game developer named Jonas Sarmer earned over $5 million by embracing rapid prototyping before committing to a full game project. Instead of building the first idea that came to mind, he tested multiple concepts — an ecology game, card games, a flower mechanic, a climbing game, and a tower defense style game — to identify which had real potential. The lesson: prototype broadly, validate early, and only invest deeply in ideas that show promise at the bare-bones stage.