Wow, this is completely different from most other boards' reaction. This is actually negative. The list is VERY incomplete, and they don't come preloaded on the hard drive as we thought. Noticeable games missing:
ALL the Burnout games (1, 2, 3: Takedown, and 4: Revenge)
Pro Evo 4
Doom 3
Project Gotham Racing 2
Tony Hawk Pro Skater 2 and 3
Midtown Madness 3
Panzer Dragoon Orta
Serious Sam
Dead or Alive Extreme Beach Volleyball
All the Splinter Cell games
Counter-Strike
Dead to Rights
Top Spin
Conker
MechAssault 1 or 2
Metal Gear Solid 2
All the Madden games
NBA Street Vol 3
Star Wars Battlefront II
Timesplitters 3
The Warriors
Oddworld
Psychonauts
Prince of Persia: Warrior Within
Full Spectrum Warrior
Far Cry
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One guy on Macrumors had 11 XBox games, and only 2 of them were on the list. Another guy, only 25% of his games were on the list.
All you XBox owners, would you mind posting how many games you own and how many are on the list? I'd like to keep track of the averages on different boards.
Any game that is not on the list will not work at all.
Xbox.com: What if I put in a game that isn't backward compatible?
Todd: I want to clarify—if a game isn’t on the list at Xbox.com/Games, it won’t run on your Xbox 360 console. Putting in a game that’s not on the list will give you a message saying that the game is not currently supported on Xbox 360 and point you to Xbox.com/Games for more information.
On top of that, the hard drive only comes preloaded with the patches (oops, 'emulation profiles') for Halo 1 and 2. Every time you put in a new XBox game, you have to go online and download the patch first. Don't have Live? You can order a CD from XBox.com, or download and burn them on your own CD.
This is a big pain to play some old games. Only Halo 1 and 2 are backwards compatible out of the box. PS3, on the other hand, has most titles working out of the box (not 100%, because there are no plugs for, say, the DDR dance mat and stuff).
However, there is a catch. To play an Xbox game on the 360, players must first insert the current-gen game into a next-gen console hooked up to Xbox Live. The system will check if the console has the latest emulation software. If not, it will automatically download said software, install it on the 360, restart, and load the original Xbox game. Obviously, a 360 hard drive--which comes with the Halo and Halo 2 software preinstalled--is required the backwards-compatibility software.
For 360 owners who either can't or won't log onto Xbox Live, Microsoft offers two other solutions. First, they can go to Xbox.com, download the emulators, burn them onto a CD, and then insert said CD into the 360, which will auto-install the software. The other option is to order a free CD from Xbox.com which will be mailed to the requestor for a "nominal" fee. However, the CD will be mailed out for free to Japanese 360 owners.
From GameSpot.
Suck it hard those who said the Xbox360 wouldnt be backwards compatible with may of the games.
Looks like it's NOT backwards compatable with many of the games.