NT4 ran quake perfectly, including glquake.
What other game was needed in the 90s?
What other game was needed in the 90s?
But Windows 2000 was much better for gaming. NT4 supported DX3 and DX5 unnoficially'.
W2k had a DLL call flag to enable a Windows XP like compat mode:
http://www.activewin.com/tips/win2000/1/2000_tips_43.shtml
It only worked on desktop shortcuts, but enough to run most quirky Win95/98 games.
Despite Win2k and NT4 kinda having a rep for not for gaming, I found that most games actually did run on them fine. Especially Win2k, probably the most underrated OS of all time in the Windows lineup.