First post, by CPX7700
Well, I got Windows NT 3.51 installed in a VM a while ago and, to my surprise, Unreal, Unreal Tournament, and Deus Ex all work.
I might try Nerf Arena Blast some time. I also have a copy of Dr. Brain: Action Reaction, which uses the Unreal engine.
To get these games to work, download the IMM32.DLL from Windows NT 4 and paste it into your system32 folder. The games will work in software rendering. In theory you could get some OpenGL support if you had a decent card with NT 3.51 drivers, but don't expect much.