Which Forza Horizon game introduced the 'Horizon Arcade' mode?

Forza Horizon 5 introduced the “Horizon Arcade” mode.

Horizon Arcade is a collection of short multiplayer challenges spread across the open-world map of Mexico. Each event asks players to work together against a countdown, completing activities such as driving through designated zones, destroying objects, performing stunts, or popping piñatas dropped from the Horizon Festival’s cargo plane.

The mode reflects Forza Horizon 5’s broader emphasis on spontaneous cooperative play. Players can encounter an event while freely exploring, join other drivers, and contribute without needing to enter a traditional head-to-head race. This differs from earlier games’ more structured multiplayer and festival-event systems.

Forza Horizon 5 launched in 2021 as the series’ fifth main Horizon title. Its Mexico setting includes deserts, jungles, beaches, cities, ancient ruins, and an active volcano. Horizon Arcade is easy to confuse with EventLab, another feature introduced in the same game; EventLab lets players create custom races and activities, while Horizon Arcade consists of developer-designed cooperative events.