Knockout City Is Going Free-To-Play, Velan Studios Saying Goodbye

Season 6 will mark the start of it going free-to-play, which is expected this spring.

Knockout City Will be Going Free-to-Play for Year 2 Season 6, as Developer Velan Studios Turns to Self-Publishing

Velan Studios Knockout City Art Blast - ArtStation Magazine

Knockout City Review (PS4)

Knockout City to shutdown in June, private server version incoming

Knockout City is going free-to-play and leaving EA behind

Knockout City Shutting Down After Ninth Season

Knockout City - Gematsu

Knockout City' is going free-to-play this spring as it moves away from EA

Velan Studios Knockout City Art Blast - ArtStation Magazine

Knockout City is Being Shut Down This June – GameSpew