Yes, about 300+ X-Box games work for the 360. However, you can only play them on the Elite, or you can get a software emulator for the original 360/360 Arcade.
Go here for the list of compatible X-Box games:
http://www.xbox.com/en-US/games/backwardcompatibilitygameslist.htm
UPDATE:You cannot play Xbox LIVE on Original Xbox games. :(
Hope This Helps!
-MidKnight777, DevinUser514
No, only Xbox 360 games work on Xbox 360.
No, but some original Xbox games work for Xbox 360.
Not all xbox games work on the 360. But heres a website with a list of xbox games that work
No. NTSC games will not work on a PAL Xbox 360.
No they do not, but you can play certain Xbox original games on Xbox 360
No, only Xbox 360 games work on Xbox 360.
No, but some original Xbox games work for Xbox 360.
No, Xbox 360 games only work for the Xbox.
No. they will not work. Some xbox games will work on Xbox 360 but not vice versa.
no however (some) xbox games can work on the xbox 360
New games do work on an Xbox 360. This is, of course, as long as they are specifically Xbox 360 games.
No. they will not work. Some xbox games will work on Xbox 360 but not vice versa.
Not all xbox games work on the 360. But heres a website with a list of xbox games that work
No. NTSC games will not work on a PAL Xbox 360.
Yes, pre-owned games will work on your Xbox 360. This is true as long as they are specifically Xbox 360 games.
If it is an XBOX 360 game then it will work on any XBOX 360 console.
No they do not, but you can play certain Xbox original games on Xbox 360