Listmania!
Xbox 360 Sleeper Hits
By an Amazon.com customer
ConanConan
Buy new: $15.32 / Used from: $6.04
Yes, I know that it's a big-name licensed game, and a God of War clone to boot, but the combat is too visceral for you to pass it up.
StrangleholdStranglehold
Buy new: $15.53 / Used from: $4.99
A Hong Kong action movie in a Video Game package. Do NOT pass this up.
Earth Defense Force 2017Earth Defense Force 2017
Buy new: $78.63 / Used from: $24.98
Made by a budget game manufacturer, many people wrote this off. Do not make the same mistake. Giant bugs, bad voice-acting, and grenade launchers that shoot 50 grenades. What's not to like?
PROTOTYPEPROTOTYPE
Buy new: $36.99 / Used from: $21.99
A worthy entry in the "Super-powered main character lives in sandbox city" genre
Viva Piñata: Trouble in ParadiseViva Piñata: Trouble in Paradise
Buy new: $19.99 / Used from: $12.97
In essence, you make a garden to attract pinatas to you. You don't have to be a rocket surgeon to realize this is very addictive.
Blue DragonBlue Dragon
Buy new: $10.85 / Used from: $3.99
A great JRPG for the 360, great story, classic gameplay, cel shading.
Overlord 2Overlord 2
Buy new: $33.99 / Used from: $19.06
a delightfully twisted take on a fantasy world.
Lost Planet Extreme Condition: Colonies EditionLost Planet Extreme Condition: Colonies Edition
Buy new: $72.91 / Used from: $9.85
For a near-launch title by a big-name developer, it didn't get near enough attention.
GunGun
Buy new: $87.38 / Used from: $11.08
a beautiful western game. Launch title for the 360. Pick it up if you can handle it.
Dark Messiah of Might & Magic ElementsDark Messiah of Might & Magic Elements
Buy new: $16.14 / Used from: $6.49
crappy first-person platforming aside, it's great fun to kick an orc into a spike pit.
History Channel Civil War: Secret MissionsHistory Channel Civil War: Secret Missions
Buy new: $21.49 / Used from: $17.97
One of the only games to have the balls to take on the Civil War. It didn't work out so good.
Culdcept SagaCuldcept Saga
Buy new: $84.97 / Used from: $27.90
Great fun with strategy.
ShadowrunShadowrun
Buy new: $13.99 / Used from: $5.46
a far cry from it's tabletop roots, the online-only multiplayer game is still worth it.
Robert Ludlum's The Bourne ConspiracyRobert Ludlum's The Bourne Conspiracy
Buy new: $48.49 / Used from: $11.93
One of the better movie tie-ins, very worth the money.