And I think both have seen these much older handcrafted css3d engines - https://pantel.is/projects/css3d/ https://pantel.is/projects/css3d/ - https://keithcla

And I think both have seen these much older handcrafted css3d engines - https://pantel.is/projects/css3d/ https://pantel.is/projects/css3d/ - https://keithclark.co.uk/labs/css-fps/ https://keithclark.co.uk/labs/css-fps/ (the original) but quake and doom took it to the next level :)