“Actually it’s VGA-ish resolution (320x180, just without 20 pixel strip to fit 16:9 better) and a fixed 256-color palette. It’s actually measurable. Using some more advanced stuff for details (still within the VGA-ish limits) is just a way to “get best out of both world” in some sense. In other words, it’s certainly possible to write a code that renders a perfect Butcher frame on an old VGA device. How fast it would do it and how you could “cheat” it (pre-bake lighting, simpler physics etc.) to make it actually playable, it’s a matter for another discussion. /SMK”