Hakutulokset

The CD version of the Half-Life(The Firste) was a standalone game (pre-steam). It has absolutely no idea about steam. Launch by double-clicking the exe file. It will ask for the CD-Key found on the CD-case insert and play. Then install the mod to that copy of Half-Life.
By the way, next time you start steam it may detect the legit half-life and add it to steam forever. Then you can install THAT version too if you want provided no other steam account "saw" that installation/CD-key.

Xenophobe

http://www.spike.com/netstorage/events/video-game-awards/live/

Ikari Warriors

I you wish to make an apple pie from scratch you must first invent the universe.

Funny this topic should happen just today...
Saw an advertisement on a certain game awards show for a popular sports drink.
The slogan at the end is "Its not for women".
Someone should be shot for such a sexist remark. I'm no longer interested in their soda.

Rechargeable shields.

Cleverly done.

I looked at your games list, we have nothing in common.
But if you want to try it, TF2 is a Free to play game. Premium TF2 (actually buying it) will open lots of features.

A certain Larry in a Leisure suit game was remade recently...