CS2D is a short for Counter-Strike 2D that is a 2D clone of the most famous FPS
But note the CS2D is made by Unreal Software and CS (original) is made by Valve Software. These software creators aren't afilliated.
You can download it CS2D.com - it's free, doesn't need any CD, it's 'light' (ultra small size, not even 1 gb!) - download is 2-4 minutes in maximum! For Linux, Windows XP/Vista/7 and Intel MacOS X. 100% No spyware or malware (virus, trojans, etc). TESTED.
John Lazlo: Let's play CS2D!
Kevin Fredin: I don't have the disk...
John Lazlo: Dude, I mean Counter-Strike, but 2D!
John L.: I'm gonna pwn
you lil' Kev!
Kevin F.: I have beaten you at de_cs2d, de_dust, cs_office, now what?
John L.: Go to Map Editor and build a Construction map!
Kevin F.: Nice! Good idea.
Kevin F.: Ahah, your "con_destructo_v1.1" sucks!
John L.: Oh yeah?
*John The MaxNaz RPG Laucher
KevKevin The Slennin*