Unity was released in 2005. How long have you been working on your unreleased projects? Most take only a few months to make a game, some a few years. Others significantly longer. Since more than 14 years here I started with Unity in 2007. I've been working on my main title since 2/25/2009 (If I will ever release then I broke the record of Duke Nukem Forever on April 9, 2023), although I started experimenting with it back in 2007, the decision to really go through with it was made that day and from then on I've made all the decisions in my life to have as much time as possible to develop. In the beginning it went fast, but then came different phases, nevertheless I keep going until I eventually finish, when by now I don't care at all. Whereby I realize in the meantime that my age also makes me slower. The worst thing, though, is when I get knocked out of the flow in a big way. It takes months to really get back into it. At least I learned one thing: If you don’t know when you will release but it is pretty clear that development will take a long time, then don't start to optimize for performance before the end of development. My unfinished game runs really extremely good on hardware no one uses anymore - so good that even Apple was impressed by its performance and capabilities 10 years ago. Currently I think it is time to switch to URP with the project because I believe the builtin render pipeline will be discontinued one day. It will be a lot of work for me because of all its custom shaders. Of course switching the engine is a thought these days too. Anyway I wonder which of you will beat me at this inglorious record.