FREE: Doom 3- for Xbox,will work on Xbox 360!

nice brings back memories

I looked this up , according to this article some games can be played on the 360 as long as it has a hard drive?? Hope this helps [] The Xbox 360 is backwards compatible with certain games that were released for the original Xbox. The BC list has not been updated for quite some time, but there are more than 400 titles on the list which covers most of the big name titles. Halo, Halo 2, Splinter Cell: Chaos Theory, Star Wars: Knights of the Old Republic, Psychonauts, and Ninja Gaiden Black are just some of the Xbox games you can play on Xbox 360. For the full list, check here
There is a requirement for backwards compatibility and that is you have to have a hard drive for your Xbox 360. The 4GB Xbox 360 slim won't work for BC unless you put a hard drive in it. It also needs to be mentioned that you must use an official Microsoft-brand Xbox 360 hard drive. Third party drives you may find for cheaper on eBay do not have the necessary partitions to allow for backward compatibility, so it will not work (see full article here).

The way the backwards compatibility software is updated on your system is as simple as putting a backward compatible Xbox game into your Xbox 360, and the update will download from Xbox Live automatically.[]

http://support.xbox.com/en-US/xbox-on-other-devices/original-console/play-original-games

lucabillings is correct according to this list. I played this right on my slim 360 and it worked fine. I would never say a game worked for a system and it won't. I am a honest seller. :)