This is a leaked (in 2022) build of Duke Nukem Forever circa 2001, when the game was still running on Unreal Engine 1.
The archive is a collection of smaller ones, but you should be good with just "part1."

Shamelessly stolen installation instructions:
copy contents of megapatch and d3d8wrapper from the patches folder into the game directory
run dukeforever.exe from the system folder

Additional notes:
Do not expect a full playable experience. Most maps are unfinished or just tests and contain no items or entities.

Press f12 to open the in-game console, and use the "setres" command to set your screen resolution. The game may freak out, so you'll have to kill it and relaunch.
Other Unreal Engine console commands should also work.


Remember to take a 15 minute break for every hour you play.
	-HNRT