It takes a huge amount of work to make such a game, even if everything goes perfectly well. I know there are interesting technical challenges in the game and there’s potentially a lot of money and other motivation, but I simply can’t image myself working hard several years to create a virtual environment where you can throw shit around and watch women explode because of alien insemination. (This is a simplification indeed, but the point should be clear.)
Would you invest the time and effort? If yes, why do you feel it’s worth it?