Xbox Live Arcade (XBLA) was Microsoft's digital distribution service for Xbox 360 (launched November 2004, rebranded 2008). It pioneered console digital storefronts.
Most XBLA games are backward compatible on Xbox One/Series X|S and purchasable in the Microsoft Store. Many received "Xbox One X Enhanced" patches. The Summer of Arcade promotions (2008–2012) defined a golden age of indie console gaming.