What's your gpu? The shaders can cause a crash with certain (usually old) graphics card drivers.And what are you doing to load the game? Just running the .exe?
Instead of using effects, modern. In a 2.5D fps game.
And to use mostly zscript.
I would have used Decorate. As for, lighting and shadows.
I would use sectors.
And then yes this game, it would have no problems whatsoever.
From your Mark Kaminari00 founder of Mark Kaminari Software.⚡️