Even if you gave him a current-day computer to play with (otherwise, even supercomputers of the time would struggle to run UE5), he wouldn’t achieve much, consumer grade computers back then really struggled with 3D graphics. Quake, released in 1996, would usually play around 10-20 FPS.
I would go back in time to 1995 and give John Carmack modern tools and maybe UE5 and see what happens.
Even if you gave him a current-day computer to play with (otherwise, even supercomputers of the time would struggle to run UE5), he wouldn’t achieve much, consumer grade computers back then really struggled with 3D graphics. Quake, released in 1996, would usually play around 10-20 FPS.