Best FPS game of the 20th century

[Mike_L]

Zkuq said:
Half-Life. I've had more, even much more, fun with other FPS games from the era, but Half-Life was so much more, and I can appreciate it.

This.

I was a big Unreal (and other arena shooters) fan but Half-Life was something completely different.

An obvious shout out to Doom as well of course.