A full list of Xbox one backwards compatible games

The service is available now only for Xbox One Preview Program members (available by invite only), but when it rolls out publicly this fall, there will be "hundreds" of available titles.

Xbox One Backward Compatible Titles (As of August 3):

A Kingdom of Keflings

A World of Keflings

Alien Hominid

Banjo-Kazooie

Banjo-Kazooie: Nuts & Bolts

Banjo-Tooie

BattleBlock Theater

Defense Grid: The Awakening

Gears of War

Gears of War 2 (planned)

Gears of War 3 (planned)

Gears of War: Judgment (planned)

Geometry Wars: Evolved

Fallout 3 (planned)

Hexic HD

Jetpac Refuelled

Kameo

Mass Effect

N+

Perfect Dark

Perfect Dark Zero

Shadow Complex

Small Arms

Super Meat Boy

Toy Soldiers

Toy Soldiers Cold War

Viva Pinata

Viva Pinata Trouble in Paradise