Floating Cities, Frozen Oceans, and Sharkkin: How The Silver Seas Expansion Transforms Naval Warfare in Age of Wonders 4
Long treated as little more than empty transit lanes between continents, the oceans of Age of Wonders 4 have officially become a full-fledged theater of war and commerce. Developed by Triumph Studios and published by Paradox Interactive, the maritime expansion The Silver Seas launches today, November 3, 2026, on PC (via Steam, Epic Games Store, and GOG), PlayStation 5, and Xbox Series X|S for $24.99 / €24.99.
This major release anchors Expansion Pass 4 ($49.99 / €49.99), which immediately unlocked the Singer of Storms pack at purchase and precedes two additional expansions on our 2027 game release calendar: Court of the Archfey in Q1 2027 followed by Forge of the Firstborn in Q2 2027. Alongside the paid DLC, every base game owner receives the free Manta Update today, overhauling water navigation on the world map, tactical aquatic combat, and the core trade system.
Mercantile Culture: Floating Cities, Cartel Smuggling, and Barony Bounties
Central to The Silver Seas is the new Mercantile culture. Built for rulers who view every alliance, trade route, and rivalry through the lens of profit, this faction breaks traditional map constraints by allowing players to found and expand full cities directly on the water as well as on land.
When shaping your empire, the Mercantile culture branches into two distinct subcultures with sharply contrasting playstyles:
- The Cartel: Shadow brokers specializing in smuggling routes, intelligence networks, and behind-the-scenes manipulation to drain rival economies without firing a single arrow.
- The Barony: Wealthy merchant princes and noble houses who leverage massive gold reserves to field elite armies and place lucrative bounties on enemy rulers.
Aqualon and Sharkkin Forms, 4 Magic Tomes, and the Bond of the Free Captains
To populate these seafaring empires, Triumph Studios adds two new Physical Forms alongside the Children of the Waves society trait, which lets you transform your population into Merfolk or ride into battle atop the new amphibious Seamare mount. Players can craft factions around the Aqualon, an elegant, near-human amphibious people touched by deep-sea mysteries, or unleash the Sharkkin, monstrous apex predators built for boarding actions and brutal melee combat beneath the waves.
Arcane warfare also expands with four new Tomes of Magic themed around forgotten ocean depths, sea curses, piracy, and glacial dominion:
- Tome of Hydromancy: A Tier 1 (Nature / Materium) tome focused on battlefield control, pushing and immobilizing enemy ranks while inflicting the "wet" status to make targets vulnerable to lightning and frost damage.
- Tome of Eternal Ice: A high-tier tome that allows rulers to literally freeze ocean regions on the strategic map, invoke ice elemental transformations, and blanket rival provinces in relentless whiteout blizzards.
- Two piracy and abyssal curse Tomes: Engineered to plunder rival trade networks and summon drowned souls from the depths.
On the world map, explorers will now encounter a new NPC faction dwelling: the Bond of the Free Captains. These pirate strongholds feature customizable captains with their own personalities, storylines, and mercenary demands that can culminate in an unbreakable Life Bond. New underwater and coastal Ancient Wonders, dynamic Ocean Happenings, sea monsters, realm templates, and a fresh suite of musical tracks composed by series veteran Michiel van den Bos complete the expansion. Plus, for completionists worried about losing their 100% ribbon when a new expansion drops, remember that Steam now separates DLC achievements from base game completion.
My Take: Oceans Are Finally More Than Empty Blue Tiles
As someone who has sunk hundreds of hours into 4X strategy games over the years, I have always found naval gameplay to be the genre's weakest link. In most 4X titles, oceans are just tedious blue deserts you cross as quickly as possible in fragile transport ships before getting back to the "real" game on land. With The Silver Seas and the free Manta Update, I love how Triumph Studios tackles that problem head-on. Being able to build thriving cities directly on the waves with the Mercantile culture, hijack trade routes through the Cartel, or freeze an entire sea lane solid with the Tome of Eternal Ice fundamentally changes how you read the map. The ocean is no longer a passive barrier: it is prime real estate worth fighting, fortifying, and scheming over.
SEO consultant for over 20 years and digital entrepreneur, Charles "Grimtag" is the founder of Pro-Gamer.gg, Retrocharting.com, and Gamescharting.com. A competitive gamer, streamer, and retro game collector, he has worked in the video game industry for over 15 years, notably as a consultant for leading game price comparison platforms. Passionate about real-time performance data and gaming technology, he analyzes competitive esports, gaming hardware benchmarks, and creator workflows on Pro-Gamer.gg with an authentic player perspective.
