Independent developer TaleWorlds Entertainment has announced a new Mount & Blade II: Bannerlord expansion “War Sails,” and its all about the vikings.

The new Mount & Blade II: Bannerlord expansion “War Sails” is set to launch for all platforms on June 17th, adding a new Viking faction to the game. The new expansion will launch alongside a major free update for the base game.

Alongside the reveal of the new expansion is news that Mount & Blade II: Bannerlord has topped 5 million copies sold to date, a new milestone that doesn’t include Game Pass or PlayStation Plus subscribers.

Mount & Blade II: Bannerlord was originally released in early access for Windows PC (via Steam, GOG, and the Epic Games Store) followed by a full release across PC, Xbox One, Xbox Series X|S, PS4, and PS5.

Here’s a rundown on the expansion, plus a new trailer:

The War Sails expansion brings new strategic depth to the vast world of Calradia, introducing naval warfare for the first time. It features a Viking-inspired faction—legendary seafarers and fierce close-quarters fighters—alongside new coastal regions to explore. Players can command fleets, engage in ship battles, board enemy vessels, and enforce blockades, reshaping warfare across both land and sea.

What long-time fans of the franchise may appreciate most in War Sails is how Naval systems and the Nord faction integrate into Bannerlord’s world, reshaping trade, warfare, and diplomacy. The ability to explore by sea, conduct naval blockades, and engage in ship-based combat will influence battle strategies across all of Calradia, not just in the new territories – generals will need to adapt their tactics accordingly!

Features

• MEET THE NORDS: Chart a course to the Northern Kingdom, home of the fearless Nords. Trade, recruit, or fight in a land of jagged peaks and icy fjords. Will you join the North or take their riches?
• MASTER NAVAL WARFARE: War Sails brings naval warfare inspired by medieval battles. Master wind and water physics, board or ram ships, cripple foes by shattering oars, sinking hulls, or tearing sails.
• EXPLORE AN EXPANDED MAP: Calradia expands for naval warfare with a northern sea, islands, rivers, and open waters. Sail past barriers, resupply, and battle foes on land and sea.
• BUILD YOUR FLEET: Choose from 18 ships, each with unique handling shaped by wind and waves. Upgrade with siege engines, sails, and rams. Acquire vessels, upgrade ports, or win ships and figureheads.
• EMBARK ON A NAVAL CAMPAIGN: Sail rivers and seas to strike deep into enemy land. Keep armies supplied, sink foes, and blockade towns. But beware—storms and attrition can undo even the best-laid plans.
• EXPAND YOUR ARSENAL: Gather new companions, Nordic banners, hairstyles, tattoos and armour. Develop your naval skills, craft unique weapons and wield new spears, swords, and axes to rule land and sea.
• A LIVING, EVOLVING WORLD: Naval systems and Nord faction integrate into Bannerlord’s world, reshaping trade, warfare, and diplomacy.