Still bitterly disappointed that the upcoming sequel to Cyberpunk 2077 will no longer be on their in-house engine. There's something innately charming about the unique brand of jank that comes with doing it all in-house. See also: Skyrim/Creation Engine in general.

Yes a custom engine gives the game a unique look and feel, but it's also expensive. In fact, if Cyberpunk 2077 had used an off the shelf engine, it probably wouldn't have had such a buggy launch.