Couple billion dollars in revenue generated with it via Unity alone. <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Unity_(game_engine)" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Unity_(game_engine)</a> -- and that was a HORRIBLE version of it. Way better now.