Retailing for $19.99, it promises new heroes, combat mechanics, a larger party and a new story about the Roman Ninth Legion.
Originally released on PC as an Early Access title, King's Arthur: Knight's Tale is making its way to consoles.
Titled The Chained God, the update adds new story missions, more things to do at the endgame, and optimisations to the installation size.
NeocoreGames is ironing out "a few bumps" before the early access launch.
It will release next year for PC with Xbox Series X/S and PS5 versions coming later.