Rewrites in whatever language or tool catches your eye are a common pitfall (although you often learn a lot in the process), but moving to Unity would also be a

Rewrites in whatever language or tool catches your eye are a common pitfall (although you often learn a lot in the process), but moving to Unity would also be a rewrite. It might be a harder rewrite, in fact, because the author would have to adapt to a new language and a new engine. They might be able to use Unity features instead of rewriting some code but they’d still have to figure out how to use those features.