All Doom's games, all Turok's games and Duke Nukem and Quake II appearing here I played and completed the game.

unfortunately, megaton got taken down. i can't buy it now :C

Great list I just wish Aliens vs Predator 2 was also on Steam.

Nice.

I got life 7/11 of these games

Thanks for letting me know!

You should add that 3D Realms did get bought out by Interceptor though.
The 3D Realms of old is gone.

http://www.eurogamer.net/articles/2014-03-03-interceptor-buys-3d-realms-amid-gearbox-lawsuit

It was under that legal turmoil that Gearbox took the titles out of the digital stores.

http://www.polygon.com/2015/8/19/9176035/duke-nukem-mass-destruction-lawsuit-settled-3d-realms-gearbox

3D Realms didn't go under they just lost the rights to Duke Nukem 3D so it has been removed. Gearbox said they will be putting Duke 3D back up its a bit much to go over fully though. Rise of the Triad http://steamproxy.net/steamstore/app/358410/

What happened to Duke Nukem 3D? I was looking for it on steam once but i could'nt find it! Could'nt find Rise of the Triad either, and instead i found Duke Nukem Forever(ugh!) and the rise of the triad reboot. where they removed? did 3D Realms go defunct? That is sad.