What Splatoon 3 event has Salmonids invade Splatsville?

The Splatoon 3 event in which Salmonids invade regular multiplayer stages is Big Run. It turns familiar Turf War maps into emergency Salmon Run battlefields filled with hostile Salmonids.

Big Run is a special Salmon Run event introduced in Splatoon 3. Instead of fighting on the usual industrial sites associated with Grizzco, players defend an occupied city or other normally competitive location. Teams still work together to defeat Boss Salmonids, collect Golden Eggs, and meet the quota across successive waves.

The event is easy to confuse with Eggstra Work, another Splatoon 3 Salmon Run event. Eggstra Work uses a fixed shift and emphasizes score competition, while Big Run is defined by Salmonids overrunning a standard multiplayer stage. Splatfests are separate player-versus-player festivals, and League Battle is not the name of this invasion event.

Big Run also adds a competitive layer: players’ Golden Egg totals are compared with other participants, and strong performances can earn special rewards or commemorative badges. Its changing locations make the familiar stages feel strategically different.