hi Pope here's a full list of 360 games that work on the xb1 with more getting added every month
(if you've got the disc just put it in the xbox one and it will load it for you, if you've downloaded a 360 game it will be waiting on your xb1 for you to load
A Kingdom for Keflings
A World of Keflings
Alien Hominid HD
Assassin's Creed II
Asteroids & Deluxe
Banjo Kazooie®: Nuts & Bolts
Banjo-Kazooie®
Banjo-Tooie®
BattleBlock Theater
Bejeweled 2
Bellator: MMA Onslaught
Beyond Good & Evil HD
Blood of the Werewolf
BloodRayne: Betrayal
Borderlands
Call of Juarez® Gunslinger
Castle Crashers
CastleStorm
Centipede & Millipede
Condemned: Criminal Origins
Crazy Taxi™
Deadliest Warrior: Legends
Defense Grid: The Awakening
DiRT 3
DiRT Showdown
Discs of Tron
Doom
Doom II
Dungeon Siege III
Earthworm Jim HD
Fable II
Fallout 3
Feeding Frenzy
Feeding Frenzy 2: Shipwreck Showdown
Gears of War
Gears of War 2
Gears of War 3
Gears of War: Judgment
Golden Axe™
Halo: Spartan Assault
Hardwood Backgammon®
Hardwood Hearts®
Hardwood Spades®
Heavy Weapon
Hexic HD
Ikaruga
Jetpac Refuelled
Joy Ride Turbo
Just Cause 2
Kameo™: Elements of Power
LEGO Pirates of the Caribbean: The Video Game
LEGO Star Wars: The Complete Saga
Lode Runner™
LUMINES LIVE!
Mass Effect™
Metal Slug 3
Metal Slug XX
Might & Magic Clash of Heroes™
Mirror's Edge™
Missile Command
Monday Night Combat
Monkey Island 2: Special Edition
Monkey Island: Special Edition
Ms. Splosion Man™
Mutant Blobs Attack!!!
N+
NBA JAM: On Fire Edition
NiGHTS into dreams...
Operation Flashpoint™: Dragon Rising
Pac-Man: Championship Edition DX+
Pac-Man: Championship Edition™
Perfect Dark
Perfect Dark Zero
Phantom Breaker:Battle Grounds
Pinball FX™
Plants vs. Zombies
Prince of Persia
Putty Squad
Rayman 3 HD
R-Type Dimensions™
Sacred Citadel
Sega Vintage Collection: Alex Kidd & Co.
Sega Vintage Collection: Golden Axe
Sega Vintage Collection: Monster World
Sega Vintage Collection: Streets of Rage
Shadow Complex
Sonic CD
Sonic The Hedgehog
Sonic The Hedgehog 2
Sonic The Hedgehog 3
South Park: The Stick of Truth™
Super Meat Boy
Supreme Commander 2
Tom Clancy's RainbowSix Vegas
Tom Clancy's RainbowSix Vegas 2
Torchlight
Toy Soldiers
Toy Soldiers: Cold War
Tron: Evolution
Ugly Americans: Apocalypsegeddon
Viva Piñata
Viva Piñata: Trouble In Paradise
Wolfenstein 3D
Zuma
Braid
DEUS EX: HUMAN REVOLUTION
Doritos Crash Course
Fable III
Halo: Reach
Hydro Thunder
Iron Brigade
Kane & Lynch 2
Motorcross Madness
MS. PAC-MAN
Peggle
Portal: Still Alive
Spelunky
Splosion Man
Ticket to Ride
Zuma's Revenge!